Heraldic Beast Basilisk

After damage calculation: Destroy any opponent's monster that battles this card.

Heraldic Beast Berners Falcon

When this card is Summoned: You can make all face-up Level 5 or higher monsters you currently control become Level 4.

Heraldic Beast Eale

If you control 2 or more "Heraldic Beast" monsters, you can Special Summon this card (from your hand).

Heraldic Beast Gryphon

You can send 1 "Heraldic Beast" monster from your Deck to the GY, except "Heraldic Beast Gryphon"; Special Summon this card from your hand, also you cannot Special Summon from the Extra Deck for the rest of this turn, except by Xyz Summon that uses only monsters with "Heraldic Beast" or "Number" in their original names as material. Can be treated as 2 materials for the Xyz Summon of a "Number" Xyz Monster that requires 3 or more materials. You can only use each effect of "Heraldic Beast Gryphon" once per turn.

Heraldic Beast Leo

During the End Phase of the turn this card was Normal Summoned: Destroy this card. When this card is sent to the Graveyard: Add 1 "Heraldic Beast" monster from your Deck to your hand, except "Heraldic Beast Leo". You can only use this effect of "Heraldic Beast Leo" once per turn.

Heraldic Beast Stad Whale

If this card is Normal or Special Summoned: You can discard 1 card; add 2 "Heraldry" Spells/Traps from your Deck to your hand. You can banish this card from your GY, then target 2 "Heraldic Beast" monsters in your GY with the same name; Special Summon them in Defense Position, also you cannot Special Summon from the Extra Deck for the rest of this turn, except by Xyz Summon that uses only monsters with "Heraldic Beast" or "Number" in their original names as material. You can only use each effect of "Heraldic Beast Stad Whale" once per turn.

Heraldic Beast Twin-Headed Eagle

You can banish this card from your Graveyard to target 1 face-up Xyz Monster you control with no Xyz Materials and 2 "Heraldic Beast" monsters in your Graveyard; attach those monsters from the Graveyard to that face-up Xyz Monster, as Xyz Materials. You can only use the effect of "Heraldic Beast Twin-Headed Eagle" once per turn.

Heraldic Beast Unicorn

You can banish this card from your Graveyard to target 1 Psychic-Type Xyz Monster in your Graveyard; Special Summon it. Its effects are negated. You can only use the effect of "Heraldic Beast Unicorn" once per turn.

Heretical Phobos Covos

2 Level 4 monsters
You can target 1 Effect Monster your opponent controls; negate its effects, then if it battled this turn, you can take control of it until the End Phase. This is a Quick Effect if this card has an Illusion monster as material. You can only use this effect of "Heretical Phobos Covos" once per turn. If this card battles a monster, neither can be destroyed by that battle.

Heroic Challenger - Assault Halberd

If your opponent controls a monster and you control no monsters, you can Special Summon this card (from your hand). If this card attacks a Defense Position monster, inflict piercing battle damage to your opponent. When this card inflicts battle damage to your opponent: You can add 1 "Heroic" card from your Deck to your hand.

Heroic Challenger - Double Lance

When this card is Normal Summoned: You can Special Summon 1 "Heroic Challenger - Double Lance" from your hand or Graveyard in face-up Defense Position. This card cannot be used as a Synchro Material Monster. This card cannot be used as an Xyz Material, except for the Xyz Summon of a Warrior-Type monster.

Heroic Challenger - Extra Sword

An Xyz Monster that was Summoned using this card as Xyz Material gains this effect.
● When it is Xyz Summoned: It gains 1000 ATK.

Heroic Challenger - Morning Star

If you control 2 or more Warrior monsters: You can Special Summon this card from your hand. If this card is Normal or Special Summoned: You can add 1 "Heroic" Spell/Trap from your Deck to your hand. If this card is in your GY and your LP are 500 or less: You can Special Summon this card, but negate its effects. You can only use each effect of "Heroic Challenger - Morning Star" once per turn.

Heroic Challenger - Night Watchman

If this card attacks a Defense Position monster your opponent controls, before damage calculation: You can destroy that monster.

Heroic Challenger - Spartan

Once per turn, when an opponent's monster declares an attack: You can target 1 face-up "Heroic" monster you control, except this card; this card gains ATK equal to that face-up monster's original ATK, until the end of the Battle Phase.

Heroic Challenger - Swordshield

During either player's turn, if you control a face-up "Heroic" monster: You can send this card from your hand to the Graveyard; for the rest of this turn, you take no Battle Damage and "Heroic" monsters you control cannot be destroyed by battle.

Heroic Challenger - Thousand Blades

Once per turn, if this card is in Attack Position: You can discard 1 "Heroic" card; you cannot Special Summon monsters for the rest of this turn, except "Heroic" monsters, also Special Summon 1 "Heroic" monster from your Deck, and if you do, change this card to Defense Position. When you take damage while this card is in your Graveyard: You can Special Summon this card in Attack Position. You can only use this effect of "Heroic Challenger - Thousand Blades" once per turn.

Heroic Champion - Claivesolish

2 Level 4 Warrior monsters
Your opponent cannot target monsters for attacks, except this one. You can only use each of the following effects of "Heroic Champion - Claivesolish" once per turn. You can pay LP so that you only have 500 left; at the start of the Battle Phase this turn, double the ATK of 1 monster you control. When an attack is declared involving your opponent's monster: You can detach 1 material from this card, then target 1 face-up monster your opponent controls; this card gains ATK equal to that monster's ATK until the end of this turn.

Heroic Champion - Excalibur

2 Level 4 Warrior-Type monsters
Once per turn: You can detach 2 Xyz Materials from this card; this card's ATK becomes double its original ATK until your opponent's next End Phase.

Heroic Champion - Gandiva

2 Level 4 Warrior-Type monsters
Once per turn, when a Level 4 or lower monster(s) is Special Summoned to your opponent's side of the field (except during the Damage Step): You can detach 1 Xyz Material from this card; destroy that Special Summoned monster(s).

Heroic Champion - Kusanagi

3 Level 4 Warrior-Type monsters
Once per turn, during either player's turn, when a Trap Card is activated: You can detach 1 Xyz Material from this card; negate the activation, and if you do, destroy it, then this card gains 500 ATK.

Heroic Champion - Magnum Excalibur

2 Level 4 Warrior monsters
If this card battles an opponent's monster, during damage calculation: You can detach 2 materials from this card; double this card's ATK during damage calculation only. Once per turn, during the Main Phase (Quick Effect): You can target 1 other face-up monster you control; equip this card you control to it as an Equip Spell that gives it 2000 ATK/DEF. You can banish this card from your GY; shuffle 3 Warrior monsters from your GY into the Deck.

Hi-Speedroid Puzzle

1 Tuner + 1 or more non-Tuner monsters
At the start of the Damage Step, if this card battles a Special Summoned monster: You can make this card's ATK become double its current ATK until the end of the Damage Step. Once per turn, during the End Phase, if this card is in the Graveyard because this Synchro Summoned card was sent there from the field this turn: You can target 1 "Speedroid" monster in your Graveyard, except "Hi-Speedroid Puzzle"; add it to your hand.

Hibikime

Confuses enemy monsters with a noise that is harsh to the ears.

Hieratic Dragon of Gebeb

When this card destroys an opponent's monster by battle and sends it to the Graveyard: Special Summon 1 Dragon-Type Normal Monster from your hand, Deck, or Graveyard, and make its ATK and DEF 0. When this card is Tributed: Special Summon 1 "Hieratic" Normal Monster from your hand, Deck or Graveyard.

Hieratic Dragon of Nuit

Once per turn, during either player's turn, when this face-up card on the field is targeted by a Spell Card, Trap Card, or card effect: Special Summon 1 Dragon-Type Normal Monster from your hand, Deck, or Graveyard, and make its ATK and DEF 0.

High Tide Gyojin

A very agile half-fish warrior known for its relentless attacks.

Hinezumi Hanabi

Cannot be used as a material for a Fusion, Synchro, Xyz, or Link Summon. If this card is Normal or Special Summoned: Place 6 counters on it. Once per turn, during your End Phase: Give control of this card to your opponent. Once per turn, if control of this face-up card with a counter(s) changes: Roll a six-sided die, remove as many counters from this card as possible, up to the result, and if all of this card's counters are removed by this effect, destroy this card, and if you do, take 2000 damage.

Hitotsu-Me Giant

A one-eyed behemoth with thick, powerful arms made for delivering punishing blows.

Holding Arms

If this card is Normal or Special Summoned: Target 1 face-up monster your opponent controls; while this card is face-up on the field, that face-up monster cannot attack, also its effects are negated. While that face-up monster is on the field, this card cannot be destroyed by battle or card effects.

Holding Legs

If this card is Summoned: Return all Set Spell and Trap Cards on the field to the hand. You can banish this card from your Graveyard, then target 1 Set Spell/Trap Card your opponent controls; that Set card cannot be activated until the end of your opponent's next turn.

Homunculus the Alchemic Being

Once per turn: You can change the Attribute of this card.

Honest

During your Main Phase: You can return this face-up card from the field to the hand. During the Damage Step, when a LIGHT monster you control battles (Quick Effect): You can send this card from your hand to the GY; that monster gains ATK equal to the ATK of the opponent's monster it is battling, until the end of this turn.

Horn Imp

''A small fiend that dwells in the dark, its single horn makes it a formidable opponent.''

Horus the Black Flame Dragon LV4

Control of this face-up card cannot switch. During the End Phase, if this card destroyed a monster by battle this turn: You can send this face-up card to the Graveyard; Special Summon 1 "Horus the Black Flame Dragon LV6" from your hand or Deck.

Hound of the Tistina

If this card is in your hand or GY and you control a LIGHT "Tistina" monster: You can Special Summon this card. You can only use this effect of "Hound of the Tistina" once per turn. "Tistina" monsters you control can attack directly while your opponent controls a face-down Defense Position monster.

Hourglass of Courage

If this card is Normal or Flip Summoned, its original ATK and DEF are halved until the End Phase of your next turn. After that, the original ATK and DEF are doubled.

Humanoid Slime

This slime apparently has some human genes in its genetic makeup.

Hundred Dragon

Once per turn: You can have this card gain Levels equal to the number of cards you control, and if you do, it gains 100 ATK for each Level gained. These changes last until the end of this turn. If this card is sent to the GY: You can target 1 face-up monster you control that was Special Summoned from the Extra Deck; the first time that face-up monster would be destroyed by battle or card effect, it is not destroyed. You can only use this effect of "Hundred Dragon" once per turn.

Hunter of Black Feathers

While your opponent controls 2 or more face-up monsters, all of the same Type, you can send 1 card from your hand to the Graveyard to select and destroy 1 face-up monster your opponent controls.

Hunter Owl

This card gains 500 ATK for each face-up WIND monster you control. While you control another face-up WIND monster, your opponent cannot select this card as an attack target.

Hydra Viper

Each time this card declares an attack, you must Tribute 1 Aqua-Type monster. This card can attack 3 times during each Battle Phase.

Hydrogeddon

When this card destroys an opponent's monster by battle and sends it to the GY: You can Special Summon 1 "Hydrogeddon" from your Deck.

Hydrojet Shark

If a WATER Xyz Monster is on the field, you can Special Summon this card (from your hand), but you cannot Special Summon "Hydrojet Shark" for the rest of this turn. You can only use 1 of the following effects of "Hydrojet Shark" per turn, and only once that turn. During your Main Phase: You can send 1 Fish "Shark" monster or 1 "Xyz" Spell/Trap from your Deck to the GY. You can banish this card from your GY; add 1 "Aqua Jet" card from your Deck or GY to your hand.

Hyosube

This amphibian is strong on the attack, but leaves much to be desired when defending.

Hyper Hammerhead

At the end of the Damage Step, if an opponent's monster that battled this card is not destroyed: Return that opponent's monster to the hand.

Hyper Synchron

If this card is sent to the Graveyard for the Synchro Summon of a Dragon-Type monster: That monster gains 800 ATK, also banish that face-up monster during the End Phase.

Hypnocorn

When this card is Normal Summoned, if your opponent controls a monster and you control no other monsters: You can target 1 Set Spell/Trap Card on the field; destroy that target.

Hypnosister

This card gains effects based on the total number of cards in both players' Pendulum Zones.
● 1 or more: This card gains 800 ATK and DEF.
● 2 or more: At the start of the Damage Step, if this card battles a Pendulum Summoned monster: Destroy that monster.
● 3 or more: Monsters your opponent controls must attack this card, if able.
● 4: If this card destroys a monster by battle or by its own effect: Draw 1 card.

Hysteric Fairy

Tribute 2 monsters on your side of the field to increase your Life Points by 1000 points.

I.A.S. -Invasive Alien Species-

Cannot be destroyed by battle or card effects while your opponent has a face-up card in their Field Zone. You can only use each of the following effects of "I.A.S. -Invasive Alien Species-" once per turn. If your opponent has a face-up card in their Field Zone: You can target 1 monster they control; destroy it, and if you do, this card gains 1000 ATK. If your opponent has a face-up card in their Field Zone, while this card is in your GY: You can Special Summon this card.

Ibicella Lutea

Cannot be destroyed by battle while you control another monster. Neither player can target face-up Spells/Traps you control with card effects.

Ice Beast Zerofyne

2 Level 4 Winged Beast-Type monsters
Once per turn: You can detach 1 Xyz Material from this card; negate the effects of all face-up cards your opponent currently controls, and if you do, this card gains 300 ATK for each face-up card currently on the field, except this card (these effects are applied until your next Standby Phase).

Ice Hand

When this card in your possession is destroyed by your opponent's card (by battle or card effect) and sent to your Graveyard: You can target 1 Spell/Trap Card they control; destroy that target, then you can Special Summon 1 "Fire Hand" from your Deck.

Ice Knight

Gains 400 ATK for each Aqua monster you control. Once per turn: You can activate this effect; you can Normal Summon 1 WATER monster during your Main Phase this turn, in addition to your Normal Summon/Set (you can only gain this effect once per turn), also you cannot Normal or Special Summon monsters for the rest of this turn, except WATER monsters.

Ice Ryzeal

You can Special Summon this card (from your hand) by sending 1 card from your hand or field to the GY. If Summoned this way, you cannot Special Summon from the Extra Deck for the rest of this turn, except Rank 4 Xyz Monsters. You can only Special Summon "Ice Ryzeal" once per turn this way. If this card is Normal Summoned: You can Special Summon 1 "Ryzeal" monster from your Deck, except "Ice Ryzeal". You can only use this effect of "Ice Ryzeal" once per turn.

Icejade Acti

If this card is Normal or Special Summoned: You can send 1 WATER monster from your hand to the GY; draw 1 card. If a face-up WATER monster(s) you control is destroyed by battle or card effect, while this card is in your GY: You can banish this card; Special Summon 1 "Icejade" monster from your hand or GY, except "Icejade Acti". You can only use each effect of "Icejade Acti" once per turn.

Icejade Tinola

You can send 1 card from your hand to the GY, then target 1 WATER monster in your GY; send this card from the field to the GY, and if you do, Special Summon the targeted monster. If a face-up WATER monster(s) you control is destroyed by battle or card effect, while this card is in your GY: You can banish this card; Special Summon 1 "Icejade" monster from your hand or GY, except "Icejade Tinola". You can only use each effect of "Icejade Tinola" once per turn.

Ichiki Sayori Hime

Cannot be Special Summoned. Once per turn, during the End Phase, if this card was Normal Summoned or flipped face-up this turn: Return this card to the hand. You can only use each of the following effects of "Ichiki Sayori Hime" once per turn. If you control a monster with 800 ATK or DEF and this card is in your hand, you can: Immediately after this effect resolves, Normal Summon this card. If this card is Normal Summoned: You can add 1 Level 4 LIGHT or DARK monster with 800 ATK or DEF from your Deck to your hand, except "Ichiki Sayori Hime".

Igknight Paladin

[ Pendulum Effect ]
If you have an "Igknight" card in your other Pendulum Zone: You can destroy both cards in your Pendulum Zones, and if you do, add 1 FIRE Warrior-Type monster from your Deck or Graveyard to your hand.

''This Igknight has a reputation as a thinker with a cool head. But the truth is that his emotions just take longer to heat up.''

Igknight Templar

[ Pendulum Effect ]
If you have an "Igknight" card in your other Pendulum Zone: You can destroy both cards in your Pendulum Zones, and if you do, add 1 FIRE Warrior-Type monster from your Deck or Graveyard to your hand.

''An experienced Igknight warrior who fights for justice and despises the corrupt. He even questions his own weapon these days, due to his absolute quest for righteousness.''

Ignis Phoenix, the Dracoslayer

[ Pendulum Effect ]
During your Main Phase: You can shuffle 1 face-up Pendulum Monster from your Extra Deck into the Deck, then add 1 non-Pendulum "Dracoslayer" or "Igknight" monster from your Deck to your hand. You can only use this effect of "Ignis Phoenix, the Dracoslayer" once per turn.

(This card is always treated as an "Igknight" card.)
If this card on the field is destroyed by battle or card effect: You can Special Summon 1 "Dracoslayer" or "Igknight" monster from your Deck, except "Ignis Phoenix, the Dracoslayer", and if you do, it is treated as a Tuner. You can only use this effect of "Ignis Phoenix, the Dracoslayer" once per turn.

Immortal Ruler

Cannot be Special Summoned. You can Tribute this card, then target 1 "Zombie World" in your GY; add that target to your hand.

Impcantation Candoll

You can reveal 1 Ritual Spell in your hand; Special Summon both this card from your hand and 1 "Impcantation" monster from your Deck, except "Impcantation Candoll". If this card is Special Summoned from the Deck: You can add 1 Ritual Spell from your Deck to your hand. You can only use 1 "Impcantation Candoll" effect per turn, and only once that turn. You cannot Special Summon monsters from the Extra Deck.

Imperial Bower

If you control no other monsters: You can Tribute this card; take 2 different monsters from your Deck among "Queen's Knight", "King's Knight", and/or "Jack's Knight", and either add to your hand or Special Summon each monster. You can only use this effect of "Imperial Bower" once per turn.

Inari Fire

You can only control 1 "Inari Fire". If you control a Spellcaster-Type monster, you can Special Summon this card (from your hand). Once per turn, during your next Standby Phase after this face-up card on the field was destroyed by a card effect and sent to the Graveyard: Special Summon it from your Graveyard.

Incredible Ecclesia, the Virtuous

If your opponent controls more monsters than you do, you can Special Summon this card (from your hand). You can only Special Summon "Incredible Ecclesia, the Virtuous" once per turn this way. You can only use each of the following effects of "Incredible Ecclesia, the Virtuous" once per turn. During the Main Phase (Quick Effect): You can Tribute this card; Special Summon 1 "Swordsoul" monster or 1 "Fallen of Albaz" from your hand or Deck. During the End Phase, if a Fusion Monster(s) was sent to your GY this turn: Add this card from the GY to your hand.

Indiora Doom Volt the Cubic Emperor

Cannot be Normal Summoned/Set. Must be Special Summoned (from your hand) by sending 3 "Cubic" monsters you control to the Graveyard, and cannot be Special Summoned by other ways. If Summoned this way, this card gains 2400 ATK. If this card is Special Summoned from the hand: Inflict 800 damage to your opponent. If this card in your possession is sent to your Graveyard by your opponent's card (by battle or card effect): You can target up to 3 "Cubic" monsters in your Graveyard; Special Summon them, then you can add 1 "Cubic" card from your Deck or Graveyard to your hand.

Indomitable Fighter Lei Lei

If this card attacks, it is changed to Defense Position at the end of the Battle Phase. This card's battle position cannot be changed until the end of your next turn, except with a card effect.

Indulged Darklord

If this card is Normal or Special Summoned: You can take 2 "Darklord" monsters from your hand or Deck with different Levels, except "Indulged Darklord", Special Summon 1 of them to your opponent's field in Defense Position and add the other to your hand, also you cannot activate monster effects for the rest of this turn, except Fairy monsters. You can only use this effect of "Indulged Darklord" once per turn.

Infernal Dragon

Once per turn, during the End Phase, if this card attacked this turn: Destroy this card. When this card on the field is destroyed and sent to the GY: You can Tribute 1 monster; Special Summon this card from the GY.

Infernal Flame Banshee

2 Level 4 monsters
You can detach 1 material from this card; take 1 Pyro monster from your Deck and either add it to your hand or send it to the GY. If this card is banished and you control a Pyro monster: You can Special Summon this card, and if you do, it gains ATK equal to the number of your currently banished monsters x 100 until the end of this turn. You can only use each effect of "Infernal Flame Banshee" once per turn.

Infernal Flame Vixen

2 Pyro-Type Level 4 monsters
Once per turn: You can detach 1 Xyz Material from this card; this card gains 500 ATK until your opponent's End Phase. When this card with 2500 or more ATK is destroyed: Target 3 monsters in any Graveyard(s); banish those targets.

Infernalqueen Archfiend

The controller of this card pays 500 Life Points during each of his/her Standby Phases (this is not optional). When this card is targeted by the effect of a card controlled by your opponent, when resolving the effect, roll a six-sided die. If the result is 2 or 5, negate the effect and destroy the opponent's card. As long as this card remains on the field, during each Standby Phase, increase the ATK of 1 Archfiend Monster Card by 1000 points until the End Phase.

Infernity Archfiend

When you draw this card, if you have no other cards in your hand: You can reveal this card; Special Summon this card from your hand. When this card is Special Summoned: You can add 1 "Infernity" card from your Deck to your hand. You must have no cards in your hand to activate and to resolve this effect.

Infernity Guardian

While you have no cards in your hand, this face-up card cannot be destroyed by battle or by card effects.

Infernity Patriarch

If this is the only card in your hand, you can Special Summon it (from your hand). You can only Special Summon "Infernity Patriarch" once per turn this way. While you have no cards in your hand, if an "Infernity" monster(s) you control would be destroyed by battle or card effect, you can banish this card from your GY instead.

Inferno

Cannot be Normal Summoned/Set. Must first be Special Summoned (from your hand) by banishing 1 FIRE monster from your GY. If this card destroys an opponent's monster by battle and sends it to the GY: Inflict 1500 damage to your opponent.

Infernoble Knight Maugis

While this card is an Equip Card, the equipped monster cannot be destroyed by battle. You can only use each of the following effects of "Infernoble Knight Maugis" once per turn. If this card is sent to the GY: You can shuffle into the Deck, 3 of your other FIRE Warrior monsters and/or "Noble Arms" cards that are banished or in your GY; draw 1 card. If this card is in your GY: You can target 1 Warrior monster you control; equip this card to that monster you control.

Infernoble Knight Ogier

While this card is an Equip Card, the equipped monster cannot be destroyed by card effects. You can only use each of the following effects of "Infernoble Knight Ogier" once per turn. If this card is Normal or Special Summoned: You can send 1 "Noble Arms" card, or 1 FIRE Warrior monster except "Infernoble Knight Ogier", from your Deck to the GY. If this card is in your GY: You can target 1 Warrior monster you control; equip this card to that monster you control.

Infernoble Knight Oliver

While this card is an Equip Card, your opponent cannot target the equipped monster with card effects. You can only use each of the following effects of "Infernoble Knight Oliver" once per turn. You can send 1 FIRE Warrior monster or 1 Equip Spell from your hand or face-up field to the GY; Special Summon this card from your hand as a Level 1 monster. If this card is in your GY: You can target 1 Warrior monster you control; equip this card to that monster you control.

Infernoble Knight Turpin

While this card is an Equip Card, the equipped monster can be treated as a Tuner if used as Synchro Material. You can only use each of the following effects of "Infernoble Knight Turpin" once per turn. If you control a monster equipped with an Equip Card: You can Special Summon this card from your hand or GY, but if you Summon it from the GY, banish it when it leaves the field. If this card is in your GY: You can target 1 Warrior monster you control; equip this card to that monster you control as an Equip Spell.

Infernoid Patrulea

Cannot be Normal Summoned/Set. Must be Special Summoned (from your hand) by banishing 1 "Infernoid" monster from your hand or Graveyard while the total Levels and Ranks of all Effect Monsters you control are 8 or lower, and cannot be Special Summoned by other ways. Once per turn: You can target 1 Spell/Trap Card on the field; destroy it. This card cannot attack the turn you activate this effect. Once per turn, during your opponent's turn: You can Tribute 1 monster, then target 1 card in your opponent's Graveyard; banish it (this is a Quick Effect).

Infinitrack Anchor Drill

If this card is Normal or Special Summoned: You can Special Summon 1 EARTH Machine monster from your hand in Defense Position, except "Infinitrack Anchor Drill". You can target 1 other Machine monster you control; the Levels of both that monster and this card become the combined original Levels of those 2 monsters, until the end of this turn. You can only use each effect of "Infinitrack Anchor Drill" once per turn.

Infinity Dark

This card is treated as a Normal Monster while face-up on the field or in the Graveyard. While this card is face-up on the field, you can Normal Summon it to have it be treated as an Effect Monster with this effect:
● When this card declares an attack, you can change the battle position of 1 face-up monster your opponent controls.

Informer Spider

When this card is sent from the field to the Graveyard by a card effect, take control of 1 Defense Position monster your opponent controls.

Inpachi

A log that attacks lost travelers in the forest. Originally a big tree, it was cut down and possessed by a wicked spirit.

Insect Knight

Of all Insect fighters, he is the paragon of the Indestructible Insect Invaders, which only the elite of the elite can join. We can no longer ignore their unmatched battle prowess.

Inspector Boarder

Cannot be Normal or Special Summoned if you control a monster. Neither player can activate monster effects unless the number of monster effects that player has previously activated that turn is less than the number of monster card types currently on the field (Ritual, Fusion, Synchro, Xyz, Pendulum, and Link). (If an effect's activation was negated, it still counts toward the total for that turn. Only count effects that were activated while this monster was face-up on the field.)

Invader from Another Dimension

An extraterrestrial monster that came from a distant galaxy.

Invader of the Throne

FLIP: Select 1 monster on your opponent's side of the field and switch control of it with this card. This effect cannot be activated during the Battle Phase.

Invoked Caliga

"Aleister the Invoker" + 1 DARK monster
If a player's monster effect attempts to activate, none of that player's monsters can activate their effects for the rest of this turn while this card is face-up on the field. Each player can attack with only 1 monster during each Battle Phase.

Inzektor Earwig

Once per turn: You can equip 1 "Inzektor" monster from your hand or Graveyard to this card. While this card is equipped to a monster, that monster gains ATK and DEF equal to this card's ATK and DEF. When this card is sent to the Graveyard while equipped to a monster: The monster this card was equipped to gains 1000 ATK, until the End Phase.

Inzektor Hopper

Once per turn: You can equip 1 "Inzektor" monster from your hand or Graveyard to this card. While this card is equipped to a monster, that monster's Level is increased by 4. While this card is equipped to a monster: You can send this Equip Card to the Graveyard; the monster it was equipped to can attack your opponent directly this turn. Other monsters cannot attack the turn you activate this effect.

Iron Chain Repairman

When this card destroys a monster by battle and sends it to the Graveyard, inflict 300 damage to your opponent. Once per turn, you can Special Summon 1 Level 4 or lower "Iron Chain" monster from your Graveyard, except "Iron Chain Repairman". This card cannot attack the turn you activate this effect.

Iron Dragon Tiamaton

Cannot be Normal Summoned/Set. Must be Special Summoned by the following effect. If 3 or more cards are in the same column (Quick Effect): You can Special Summon this card from your hand. You can only use this effect of "Iron Dragon Tiamaton" once per turn. If this card is Special Summoned: Destroy all other cards in this card's column. Neither player can use the unused zones in this card's column.

Iron Hans

If this card is Summoned: You can Special Summon 1 "Iron Knight" from your Deck, also if "Golden Castle of Stromberg" is not in a Field Zone when this effect resolves, you cannot Special Summon monsters from the Extra Deck for the rest of this turn. You can only use this effect of "Iron Hans" once per turn. Gains 1000 ATK for each "Iron Knight" you control, while "Golden Castle of Stromberg" is in a Field Zone.

Iron Knight

Loses 1000 ATK while you control "Iron Hans". If this card on the field is destroyed by battle or sent to the GY by a card effect: You can add 1 "Iron Hans" from your Deck to your hand, or, if "Golden Castle of Stromberg" is in a Field Zone, you can add 1 Warrior monster from your Deck to your hand, instead. You can only use this effect of "Iron Knight" once per turn.

Island Turtle

A huge turtle that is often mistaken for an island.

Isolde, Belle of the Underworld

If you control "Tristan, Knight of the Underworld", you can Special Summon this card (from your hand). Cannot be Special Summoned by other ways. You can target up to 2 Zombie monsters you control and declare a Level from 5 to 8; they become that Level until the end of this turn, also you cannot Special Summon monsters for the rest of this turn, except Zombie monsters. You can only use this effect of "Isolde, Belle of the Underworld" once per turn.

Ixeep, Omen of the Ghoti

If a Fish monster(s) is banished (except during the Damage Step): You can Special Summon this card from your hand. During the Standby Phase of the next turn after this card was banished: You can target 1 of your "Ghoti" Traps that is banished or in your GY; Set that target. You can only use each effect of "Ixeep, Omen of the Ghoti" once per turn.

Izanami

This card cannot be Special Summoned. This card returns to its owner's hand during the End Phase of the turn it is Normal Summoned or flipped face-up. When this card is Normal Summoned or flipped face-up, you can discard 1 card to add 1 Spirit monster from your Graveyard to your hand.

Jack Wyvern

You can banish this card and 1 face-up Machine monster you control, then target 1 DARK monster in your GY; Special Summon it. You can only use this effect of "Jack Wyvern" once per turn.

Jade Knight

While this card is in Attack Position, Machine-Type monsters you control with 1200 or less ATK cannot be destroyed by Trap effects. When this card is destroyed by battle and sent to the Graveyard: You can add 1 Level 4 LIGHT Machine-Type monster from your Deck to your hand.

Jain, Lightsworn Paladin

If this card attacks an opponent's monster, it gains 300 ATK during the Damage Step only. Once per turn, during your End Phase: Send the top 2 cards of your Deck to the Graveyard.

Jain, Twilightsworn General

Once per turn: You can banish 1 "Lightsworn" monster from your hand or GY, then target 1 face-up monster on the field; it loses ATK and DEF equal to the banished monster's Level x 300, until the end of this turn. Once per turn, if your other "Lightsworn" monster's effect is activated: Send the top 2 cards of your Deck to the GY.

Jar Turtle

Each time "Jar of Greed" is activated, draw 1 card.

Jellyfish

An almost invisible, semi-transparent jellyfish that drifts in the sea.

Jenis, Lightsworn Mender

During the End Phase, if a card(s) was sent from your Deck to the Graveyard by the effect of a "Lightsworn" card this turn: Inflict 500 damage to your opponent, and if you do, gain 500 LP.

Jetroid

At the time this card is selected as an attack target by an opponent's monster, you can activate Trap Card(s) from your hand.

Jigabyte

You can only control 1 "Jigabyte". If you control a Spellcaster-Type monster, you can Special Summon this card (from your hand). When this card is destroyed by battle or card effect and sent to the Graveyard: You can Special Summon 1 monster with 1500 ATK and 200 DEF from your Deck, except "Jigabyte".

Jinzo - Jector

This card's name becomes "Jinzo" while on the field or in the Graveyard. You can Tribute this card; add 1 "Jinzo" monster from your Deck to your hand, except "Jinzo - Jector", then reveal all Set cards in your opponent's Spell & Trap Zones, and if there are Trap Cards among them, you can Special Summon "Jinzo" monsters from your hand, up to the number of Trap Cards revealed. You can only use this effect of "Jinzo - Jector" once per turn.

Jirai Gumo

When this card declares an attack: Toss a coin and call it. If you call it wrong, lose half your Life Points.

Jongleur-Ghoul Illusionist

''A captivating street performer, who'll catch you off guard with his song and dance and hocus pocus attacks. Once his eyes start spinning, danger is impending, so make a run for it!''

Judge of the Ice Barrier

While you control another "Ice Barrier" monster, each time your opponent activates a card or effect by paying LP, they lose 500 LP. You can only use each of the following effects of "Judge of the Ice Barrier" once per turn. You can target 1 or 2 "Ice Barrier" monsters in your GY and 1 or 2 cards in your opponent's GY; shuffle them into the Deck. If you control an "Ice Barrier" monster: You can banish this card from your GY, then target 1 Attack Position monster on the field; change it to Defense Position.

Jumbo Drill

When this card is Normal Summoned: You can increase the Levels of all Machine-Type monsters you currently control by 1. If this card attacks a Defense Position monster, inflict piercing battle damage to your opponent. If this card attacks, it is changed to Defense Position at the end of the Damage Step.

Junk Blader

You can banish 1 "Junk" monster from your Graveyard; this card gains 400 ATK until the end of this turn.

Junk Breaker

During your Main Phase, if this card was Normal Summoned this turn: You can Tribute this card; all face-up monsters on the field have their effects negated until the end of this turn.

Junk Servant

If you control a "Junk" monster, you can Special Summon this card (from your hand).

Juragedo

During the Battle Step (Quick Effect): You can Special Summon this card from your hand, and if you do, gain 1000 LP. You can only use this effect of "Juragedo" once per turn. (Quick Effect): You can Tribute this card, then target 1 face-up monster you control; it gains 1000 ATK until the end of the next turn.