Skull Conductor

If this card is face-up on the field at the end of the Battle Phase: Destroy this face-up card. You can send this card from your hand to the Graveyard; Special Summon up to 2 Zombie-Type monsters from your hand whose combined ATK is exactly 2000.

Skull Dog Marron

A lost dog that wandered off 1000 years ago. He's still waiting for his master to come for him.

Skull Mariner

A pirate ship that appears out of the mist and sinks any seagoing vessels.

Skull Meister

When a card effect is activated in your opponent's GY (Quick Effect): You can send this card from your hand to the GY; negate that effect.

Skull Red Bird

This monster swoops down and attacks with a rain of knives stored in its wings.

Skull-Mark Ladybug

When this card is sent to the Graveyard, increase your Life Points by 1000 points.

Sky Scout

With eyes like a hawk and a flying speed exceeding Mach 5, this monster is a master of the sky.

Sky Striker Ace - Raye

(Quick Effect): You can Tribute this card; Special Summon 1 "Sky Striker Ace" monster from your Extra Deck to the Extra Monster Zone. While this card is in your GY, if a face-up "Sky Striker Ace" Link Monster you control is destroyed by battle, or leaves the field because of an opponent's card effect: You can Special Summon this card. You can only use each effect of "Sky Striker Ace - Raye" once per turn.

Sky Striker Ace - Roze

If a "Sky Striker Ace" monster(s) is Normal or Special Summoned, except "Sky Striker Ace - Roze" (except during the Damage Step): You can Special Summon this card from your hand. If an opponent's monster in the Extra Monster Zone is destroyed by battle, or leaves the field because of your card effect, while this card is in your GY: You can Special Summon this card, then you can negate the effects of 1 face-up monster your opponent controls, until the end of this turn. You can only use each effect of "Sky Striker Ace - Roze" once per turn.

Slate Warrior

FLIP: This card gains 500 ATK and DEF.
If this card is destroyed by battle: The monster that destroyed it loses 500 ATK and DEF.

Sleeping Lion

A ferocious animal that sleeps all day. Sometimes it's better to let Sleeping Lions lie.

Snakeyashi

This monster is formed by several serpents that break off to individually attack nearby enemies.

Snipe Hunter

You can discard 1 card, then target 1 card on the field; roll a six-sided die, and destroy that target unless you roll a 1 or 6.

Snow Dragon

When this card is destroyed by battle or by a card effect and sent to the Graveyard: Place 1 Ice Counter on each face-up monster on the field.

Snowdust Giant

2 Level 4 WATER monsters
Once per turn: You can detach 1 Xyz Material from this card; reveal any number of WATER monsters from your hand, and place that many Ice Counters on face-up monsters on the field. Non-WATER monsters on the field lose 200 ATK for each Ice Counter on the field.

Snowman Creator

When this card is Summoned: You can create a number of Ice Counters equal to the number of WATER monsters you control, place them on a face-up monster(s) your opponent controls, then, if you placed 3 or more Ice Counters by this effect, you can destroy 1 card your opponent controls.

Snoww, Unlight of Dark World 33

If this card is discarded to the Graveyard by a card effect: If it was discarded from your hand to your Graveyard by an opponent's card effect, you can target 1 monster in your opponent's Graveyard; add 1 "Dark World" card from your Deck to your hand, then Special Summon that target (if any) in face-up Defense Position.

Solar Flare Dragon

While you control another Pyro-Type monster, this card cannot be attacked. During each of your End Phases: Inflict 500 damage to your opponent.

Solitaire Magician

Once per turn, you can select 1 face-up "Fortune Lady" monster you control and 1 other face-up monster on the field. Reduce the Level of the selected "Fortune Lady" monster by 3, and destroy the other selected monster.

Solo the Melodious Songstress

If your opponent controls a monster and you control no monsters, you can Special Summon this card (from your hand). When this card is destroyed by battle and sent to the Graveyard: You can Special Summon 1 "Melodious" monster from your Deck, except "Solo the Melodious Songstress".

Sonic Bird

When this card is Normal or Flip Summoned: You can add 1 Ritual Spell from your Deck to your hand.

Sonic Shooter

If there are no cards in your opponent's Spell & Trap Zone, this card can attack your opponent directly. If it does, the battle damage inflicted to your opponent is the original ATK of this card.

Soprano the Melodious Songstress

When this card is Special Summoned: You can target 1 "Melodious" monster in your Graveyard, except "Soprano the Melodious Songstress"; add it to your hand. You can only use this effect of "Soprano the Melodious Songstress" once per turn. Once per turn: You can Fusion Summon 1 "Melodious" Fusion Monster from your Extra Deck, using monsters you control as Fusion Materials, including this card.

Sorcerer of the Doomed

A slave of the dark arts, this sorcerer is a master of life-extinguishing spells.

Soul Tiger

The soul of a tiger that is said to devour human souls. He is a famous soul that you wouldn't want to run into in a dark alley.

Souleater

A living wonder of mystery.

Souleating Oviraptor

If this card is Normal or Special Summoned: You can take 1 Dinosaur-Type monster from your Deck, and either add it to your hand or send it to the Graveyard. You can target 1 other Level 4 or lower Dinosaur-Type monster on the field; destroy it, then Special Summon 1 Dinosaur-Type monster from your Graveyard in Defense Position. You can only use each effect of "Souleating Oviraptor" once per turn.

Space Mambo

A Space Mambo floating in the vast universe. This living relic was found in the ruins of a super civilization on Alphard 4.

Speaker for the Ice Barriers

While you control another "Ice Barrier" monster, Defense Position monsters your opponent controls cannot change their battle positions. You can only use each of the following effects of "Speaker for the Ice Barriers" once per turn. If you control an "Ice Barrier" monster: You can Special Summon this card from your hand. If you control an "Ice Barrier" monster: You can banish this card from your GY; Special Summon 1 "Ice Barrier Token" (Aqua/WATER/Level 1/ATK 0/DEF 0).

Spear Dragon

During battle between this attacking card and a Defense Position monster whose DEF is lower than the ATK of this card, inflict the difference as Battle Damage to your opponent. If this card attacks, it is changed to Defense Position at the end of the Damage Step.

Spear Shark

When this card is Normal Summoned: You can increase the Levels of all Level 3 Fish-Type monsters you currently control by 1. If this card attacks a Defense Position monster, inflict piercing battle damage to your opponent.

Spearfish Soldier

This card gains 100 ATK for each of your banished Fish, Sea Serpent, and Aqua-Type monsters.

Spearhead of the Ashened City

If "Obsidim, the Ashened City" is in the Field Zone, you can Special Summon this card (from your hand). You can only Special Summon "Spearhead of the Ashened City" once per turn this way. If your opponent controls a monster with 2800 or more ATK: You can Tribute this card, then target 1 card your opponent controls; return it to the hand. You can only use this effect of "Spearhead of the Ashened City" once per turn.

Speed Bird

When this card is destroyed by battle and sent to the Graveyard: You can target 2 Level 2 monsters in your Graveyard; Special Summon them, but their effects are negated.

Speedroid Block-n-Roll

If this card is sent to the GY as Synchro Material: You can Special Summon 1 "Speedroid Token" (Machine/WIND/ATK 0/DEF 0) with a Level equal to the original Level of the Synchro Monster that used this card as material. You can only use this effect of "Speedroid Block-n-Roll" once per turn.

Speedroid Double Yoyo

When this card is Normal Summoned: You can target 1 Level 3 or lower "Speedroid" monster in your Graveyard; Special Summon it.

Speedroid Fuki-Modoshi Piper

If this card is Normal or Special Summoned: You can excavate cards from the top of your Deck equal to the number of other WIND monsters you control, add 1 excavated card to your hand, also place the rest on the bottom of your Deck in any order. You can banish this card from your GY, then target 1 Level 3 or higher WIND monster you control; reduce its Level by 2. You can only use each effect of "Speedroid Fuki-Modoshi Piper" once per turn.

Speedroid Hexasaucer

[ Pendulum Effect ]
You can target 1 of your WIND Synchro Monsters that is banished or in your GY; return it to the Extra Deck. You can only use this effect of "Speedroid Hexasaucer" once per turn.

Both players take any battle damage from attacks involving this card. Any battle damage from battles involving this card is halved. If this card is destroyed in the Pendulum Zone: You can Special Summon 1 face-up "Speedroid" Pendulum Monster from your Extra Deck.

Speedroid Horse Stilts

When this card is Normal Summoned: You can Special Summon 1 Level 4 or lower "Speedroid" monster from your hand. During your Main Phase, except the turn this card was sent to the Graveyard: You can banish this card from your Graveyard; send 1 WIND monster from your Deck to the Graveyard. You can only use this effect of "Speedroid Horse Stilts" once per turn.

Speedroid Menko

When an opponent's monster declares a direct attack while this card is in your hand: You can Special Summon this card in Attack Position, and if you do, change all face-up monsters your opponent controls to Defense Position.

Speedroid Pachingo-Kart

Once per turn: You can discard 1 Machine-Type monster, then target 1 monster on the field; destroy it.

Speedroid Razorang

Cannot attack the turn it is Normal Summoned. Once per turn: You can target 1 face-up monster on the field; change this card to Defense Position, and if you do, that target loses 800 ATK until the end of this turn.

Spell Strider

If this card is in your hand: You can target 2 face-up Spell Cards on the field (1 from each side of the field); banish them, and if you do, Special Summon this card.

Spellbreaker of the Ice Barrier

Once per turn, you can send 1 "Ice Barrier" monster from your hand to the Graveyard. If you do, Spell Cards cannot be activated until the End Phase of your next turn, as long as this card remains face-up on the field.

Spirit of Flames

Cannot be Normal Summoned/Set. Must first be Special Summoned (from your hand) by banishing 1 FIRE monster from your Graveyard. This card gains 300 ATK during your Battle Phase only.

Spirit of the Books

This wise spirit dwells in books, using its accumulated knowledge to defeat enemies.

Spirit of the Fall Wind

If this card is Normal Summoned: You can add 1 Flip monster from your Deck to your hand.

Spirit of the Harp

A spirit that soothes the soul with the music of its heavenly harp.

Spirit Ryu

During your Battle Step, if this card battles (Quick Effect): You can discard 1 Dragon monster to the GY; this card gains 1000 ATK/DEF until the end of the Battle Phase.

Spirit Sculptor

You can Tribute 1 monster; add 1 monster from your Deck to your hand, whose combined original ATK/DEF equals the combined original ATK/DEF of the Tributed monster. You can only use this effect of "Spirit Sculptor" once per turn.

Spiritual Beast Apelio

Once per turn, during either player's turn: You can banish 1 "Ritual Beast" card from your Graveyard; for the rest of this turn, all "Ritual Beast" monsters you control will gain 500 ATK and DEF. You can only Special Summon "Spiritual Beast Apelio(s)" once per turn.

Spiritual Beast Cannahawk

Once per turn: You can banish 1 "Ritual Beast" card from your Deck, face-up. During your second Standby Phase after this effect's activation, add the card banished by this effect to your hand. You can only Special Summon "Spiritual Beast Cannahawk(s)" once per turn.

Spiritual Beast Pettlephin

Once per turn: You can banish 1 "Ritual Beast" card from your hand, then target 1 card your opponent controls; return it to the hand. You can only Special Summon "Spiritual Beast Pettlephin(s)" once per turn.

Spiritual Beast Rampengu

Once per turn: You can banish 1 "Ritual Beast" monster from your Extra Deck and send 1 "Ritual Beast" monster with the same Type as that monster from your Deck to the Graveyard. You can only Special Summon "Spiritual Beast Rampengu(s)" once per turn.

Spiritual Beast Tamer Winda

If this card in its owner's possession is destroyed by an opponent's card (by battle or card effect): You can Special Summon 1 "Ritual Beast" monster from your Deck or Extra Deck, ignoring its Summoning conditions. You can only Special Summon "Spiritual Beast Tamer Winda(s)" once per turn.

Spiritual Whisper

Once per turn, this card cannot be destroyed by battle. When this card is Pendulum Summoned: You can add 1 Ritual Monster or 1 Ritual Spell Card from your Deck to your hand.

Splitting Planarian

You can banish this card you control; Special Summon 2 Level 3 Insect monsters from your Deck with the same name from each other, but their effects are negated, also banish them during the End Phase. You can only use this effect of "Splitting Planarian" once per turn.

Spoon, the Seal of Magistus

You can discard this card, then activate 1 of these effects;
● Add 1 "Magistus" monster from your Deck to your hand, except "Spoon, the Seal of Magistus".
● Halve the ATK of 1 face-up monster your opponent controls until the end of this turn.
You can banish this card from your GY, then target 1 face-up monster you control; equip it with 1 "Magistus" monster from your Extra Deck or GY. You can only use each effect of "Spoon, the Seal of Magistus" once per turn.

Springans Brothers

If this card is sent from the hand or Deck to the GY: You can target 1 "Springans" monster in your GY, except "Springans Brothers"; Special Summon it in Defense Position. If this card is in your hand, field, or GY: You can target 1 "Springans" Xyz Monster you control; attach this card to it as material. You can only use each effect of "Springans Brothers" once per turn.

Springans Kitt

If you have a Fusion Monster that mentions "Fallen of Albaz" as material on your field or in your GY: You can Special Summon this card from your hand. If this card is Normal or Special Summoned: You can add to your hand, 1 of your "Branded" Spells/Traps that is banished or in your Deck or GY, then place 1 card from your hand on the bottom of the Deck. You can only use each effect of "Springans Kitt" once per turn.

Springans Merrymaker

2 Level 4 monsters
If this card is Special Summoned from your Extra Deck: You can send 1 "Springans" monster from your Deck to the GY. During your opponent's Main or Battle Phase (Quick Effect): You can banish this card until the End Phase, then if you banished this card with 2 or more Xyz Materials, you can also send 1 Fusion Monster from your Extra Deck to the GY that lists "Fallen of Albaz" as material. You can only use each effect of "Springans Merrymaker" once per turn.

Springans Pedor

You can Tribute this card, then target 1 "Springans" monster in your GY, except "Springans Pedor"; Special Summon it. If this card is in your hand, field, or GY: You can target 1 "Springans" Xyz Monster you control; attach this card to it as material. You can only use each effect of "Springans Pedor" once per turn.

Springans Rockey

If this card is Normal or Special Summoned: You can target 1 "Great Sand Sea - Gold Golgonda" or 1 "Springans" monster in your GY, except "Springans Rockey"; add it to your hand. If this card is in your hand, field, or GY: You can target 1 "Springans" Xyz Monster you control; attach this card to it as material. You can only use each effect of "Springans Rockey" once per turn.

Spyder Spider

When this card destroys an opponent's Defense Position monster by battle, you can select and Special Summon 1 Level 4 or lower Insect-Type monster from your Graveyard.

SPYGAL Misty

If this card is Normal or Special Summoned: You can declare 1 card type (Monster, Spell, or Trap); reveal the top card of your opponent's Deck, and if you do, draw 1 card if it is a card of that type. Once per turn, during either player's turn: You can target 1 "SPYRAL Super Agent" you control and 1 monster your opponent controls; return both monsters to the hand.

SPYRAL Double Agent

If you have a "SPYRAL" card on your field or in your GY: You can Special Summon this card from your hand to your opponent's field in Defense Position (but it cannot be Tributed, nor be used as material for a Fusion, Synchro, Xyz, or Link Summon), then both players reveal the top card of their Deck. You can only use this effect of "SPYRAL Double Agent" once per turn. All "SPYRAL" monsters on the field gain 500 ATK, also "SPYRAL Super Agent" on the field can attack directly.

SPYRAL GEAR - Last Resort

You can target 1 "SPYRAL" monster you control; equip this monster from your hand or field to that target. While this card is equipped to a monster by this effect, the equipped monster cannot be destroyed by battle or card effects, also your opponent cannot target it with card effects. Once per turn, if this card is equipped to a monster by this effect: You can send 1 other card you control to the Graveyard; the equipped monster can attack directly this turn.

SPYRAL Super Agent

If this card is in your hand: You can declare 1 card type (Monster, Spell, or Trap); reveal the top card of your opponent's Deck, and if you do, Special Summon this card if it is a card of that type. If this card is Special Summoned by the effect of a "SPYRAL" card: You can target 1 Spell/Trap your opponent controls; destroy it. You can only use each effect of "SPYRAL Super Agent" once per turn.

SPYRAL Tough

This card's name becomes "SPYRAL Super Agent" while it is on the field or in the GY. Once per turn: You can declare 1 type of card (Monster, Spell, or Trap) and target 1 card your opponent controls; reveal the top card of your opponent's Deck, and if you do, destroy the targeted card if the revealed card is the declared type.

Star Drawing

If this card is used for an Xyz Summon, you can treat it as a Level 5 monster. An Xyz Monster that was Summoned using this card as an Xyz Material gains this effect.
● If it is Xyz Summoned: Draw 1 card.

Star Mine

1 Tuner + 1+ non-Tuner monsters
You can only Special Summon "Star Mine(s)" once per turn. If this card in its owner's possession is destroyed by an opponent's attack or card effect: Take 2000 damage, then inflict 2000 damage to your opponent. If a monster in this card's adjacent zone is destroyed by your opponent's attack or card effect: Destroy this card, and if you do, take 2000 damage, then inflict 2000 damage to your opponent.

Star Ryzeal

You can Special Summon this card (from your hand) by detaching 1 material from a monster you control. 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 "Star Ryzeal" once per turn this way. If this card is Special Summoned: You can Set 1 "Ryzeal" Spell/Trap from your Deck. You can only use this effect of "Star Ryzeal" once per turn.

Star Seraph Sage

Once per turn: You can send 1 Spell Card from your hand to the Graveyard; Special Summon 1 "Star Seraph" monster from your hand.

Star Seraph Scale

When this card is Special Summoned: You can Special Summon 1 "Star Seraph" monster from your hand, then you can place 1 LIGHT monster from your Graveyard on top of your Deck. An Xyz Monster that was Summoned using 3 or more monsters, including this card on the field, as Xyz Materials gains this effect.
● Once per turn, while this card has Xyz Material, if a monster(s) is Special Summoned from the hand, immediately draw 1 card.

Star Seraph Scepter 5

When this card is Normal or Special Summoned: You can add 1 "Star Seraph" monster from your Deck to your hand, except "Star Seraph Scepter". An Xyz Monster that was Summoned using 3 or more monsters, including this card on the field, as materials gains this effect.
● When it is Xyz Summoned: You can target 1 other card on the field; destroy it, and if you do, you can draw 1 card.

Star Seraph Scout

When this card is Normal Summoned: You can Special Summon 1 "Star Seraph" monster from your hand.

Star Seraph Sovereignty 5

Cannot be used as material for an Xyz Summon, except for an Xyz Summon that uses 3 or more monsters as material. If you Normal or Special Summon a "Star Seraph" monster(s), except during the Damage Step: You can Special Summon this card from your hand, and if you do, draw 1 card, then you can Special Summon it if it is a "Star Seraph" monster.

Star Seraph Sword

Once per turn: You can send 1 "Star Seraph" monster from your hand to the Graveyard; this card gains ATK equal to the original ATK of the sent monster, until the End Phase.

Star Staring Starling

This card gains an effect based on your Main Monster Zone it is in.
● Leftmost: Increase its Level by 4.
● Rightmost: Increase its Level by 3.
● Center: Increase its Level by 2.
● Others: Increase its Level by 1.

Stardust Synchron

If this card is in your hand or GY: You can Tribute 1 monster; Special Summon this card, but banish it when it leaves the field, also, you cannot Special Summon monsters from the Extra Deck for the rest of this turn, except Synchro Monsters. If this card is Normal or Special Summoned: You can add 1 Spell/Trap from your Deck to your hand that mentions "Stardust Dragon". You can only use each effect of "Stardust Synchron" once per turn.

Stardust Trail

If a monster you control is Tributed (except during the Damage Step): You can Special Summon this card from your hand or GY, but banish it when it leaves the field. If a "Warrior", "Synchron", or "Stardust" Synchro Monster is Synchro Summoned using this card as material: You can Special Summon 1 "Stardust Token" (Dragon/LIGHT/Level 1/ATK 0/DEF 0). You can only use each effect of "Stardust Trail" once per turn.

Starliege Lord Galaxion

2 Level 4 "Photon" monsters
Once per turn: You can detach 1 or 2 Xyz Materials from this card; apply this effect, depending on the number you detached.
● 1: Special Summon 1 "Galaxy-Eyes Photon Dragon" from your hand.
● 2: Special Summon 1 "Galaxy-Eyes Photon Dragon" from your Deck.

Starliege Paladynamo

2 Level 4 LIGHT monsters
Once per turn: You can detach 2 Xyz Materials from this card, then target 1 face-up monster your opponent controls; change its ATK to 0, and if you do, it has its effects negated. If this card you control is destroyed by an opponent's card (by battle or card effect) and sent to your Graveyard: Draw 1 card.

Starliege Photon Blast Dragon

2 Level 4 monsters
If this card is Xyz Summoned: You can Special Summon 1 "Photon" monster from your hand. While this Xyz Summoned monster is on the field, your opponent cannot target monsters you control with 2000 or more ATK with card effects, also they cannot be destroyed by your opponent's card effects. Once per opponent's turn (Quick Effect): You can detach 1 material from this card, then target 1 of your "Galaxy-Eyes Photon Dragon" that is banished or in your GY; Special Summon it.

Starliege Seyfert 33

You can send any number of Dragon monsters from your hand and/or face-up field to the GY; add 1 Dragon monster from your Deck to your hand, whose Level equals the total original Levels of those monsters sent to the GY. You can banish this card from your GY, then target 1 Level 8 LIGHT or DARK Dragon monster in your GY; add it to your hand. You can only use each effect of "Starliege Seyfert" once per turn.

Starring Knight

2 Level 4 monsters
You can detach 1 material from this card; Special Summon 1 LIGHT monster from your hand. If this card is in your GY, except the turn it was sent there: You can target 1 Level 4 LIGHT Fairy monster you control; Special Summon this card, and if you do, attach that monster to this card as material. You can only use each effect of "Starring Knight" once per turn.

Starry Knight Astel

(Quick Effect): You can target 1 LIGHT monster you control; Tribute it, and if you do, Special Summon 1 Level 7 LIGHT Dragon monster from your hand. You can banish this card from your GY, then target 1 Level 7 LIGHT Dragon monster you control; it gains 1000 ATK until the end of your opponent's turn. You can only use each effect of "Starry Knight Astel" once per turn.

Starry Knight Ciel

If this card is in your hand: You can return 1 "Starry Knight" monster or 1 Level 7 LIGHT Dragon monster you control to the hand, except "Starry Knight Ciel"; Special Summon this card. If you control no monsters: You can banish this card from your GY; Special Summon 1 Level 7 LIGHT Dragon monster from your hand. You can only use each effect of "Starry Knight Ciel" once per turn.

Starry Knight Flamel

When an opponent's monster declares an attack: You can send this card from your hand or face-up field to the GY; Special Summon 1 Level 7 LIGHT Dragon monster from your hand. (Quick Effect): You can banish this card from your GY, then target 1 Level 7 LIGHT Dragon monster you control or in your GY; return it to your hand. You can only use 1 "Starry Knight Flamel" effect per turn, and only once that turn.

Starry Knight Orbitael

(Quick Effect): You can target 1 LIGHT monster you control; Tribute it, and if you do, Set 1 "Starry Knight" Spell/Trap directly from your Deck. If a face-up Level 7 LIGHT Dragon monster you control returns to the hand, while this card is in your GY (except during the Damage Step): You can Special Summon this card. You can only use each effect of "Starry Knight Orbitael" once per turn.

Starry Knight Rayel

When this card is Normal Summoned: You can add 1 "Starry Knight" Spell/Trap from your Deck to your hand. You can banish this card from your GY, then target 1 "Starry Knight" monster in your GY, except "Starry Knight Rayel"; Special Summon it. You can only use each effect of "Starry Knight Rayel" once per turn.

Starship Spy Plane

If your opponent controls a face-up Xyz Monster, you can Special Summon this card (from your hand). When this card is Special Summoned from the hand: Target 1 Spell/Trap Card your opponent controls; return that target to the hand.

Staysailor Romarin

(Quick Effect): You can target 1 face-up monster you control; send 1 other Plant monster you control to the GY, and if you do, the next time the targeted monster would be destroyed by battle or card effect this turn, it is not destroyed. If this card is sent to the GY by a card effect: You can send 1 Level 5 or lower Plant monster from your Deck or Extra Deck to the GY. You can only use each effect of "Staysailor Romarin" once per turn.

Stealth Kragen Spawn

2 Level 4 WATER monsters
Once per turn, during the Main Phase (Quick Effect): You can destroy 1 WATER monster your opponent controls. If this card, Special Summoned by the effect of a "Number" Xyz Monster, is destroyed: You can Special Summon other "Stealth Kragen" monsters from your GY, up to the number of materials this card had, then you can attach up to 1 WATER monster from your GY to each of those Special Summoned monsters as material.

Stealthroid

If this card attacks, destroy 1 Spell or Trap Card at the end of the Battle Phase if you control another "roid" monster.

Steam Knight - BULLauncher

''"BULLauncher" is a support machine specializing in bombardment and daytime combat that not only has the constantly refined "Coc-OS" and "BFS Armor", but it also has 3 "Foil-Packers" installed within it under orders of "Madera" after repeated trial and error. By installing a "Beef-Rifle" or other armaments, it can be used as medium- and long-range support for the "Steam Knights" and their operations. Also, "BULLauncher" can be combined with "WINGear", which specializes in high-speed aerial combat, and "BOARms", which specializes in melee and assault combat, to cause the high-calorie "Steam Jushin - BW" to descend upon this world.''

Steamed Sabersaurus

2 Level 4 monsters
You can detach 1 material from this card; destroy 1 Dinosaur monster in your hand or face-up field, then you can change the battle position of 1 monster on the field. At the start of the Damage Step, if your other Dinosaur monster battles: You can destroy this card, and if you do, that Dinosaur monster gains 2000 ATK until the end of the Battle Phase. You can only use each effect of "Steamed Sabersaurus" once per turn.

Steamroid

If this card attacks an opponent's monster, this card gains 500 ATK during the Damage Step only. If this card is attacked by an opponent's monster, this card loses 500 ATK during the Damage Step only.

Steel Cavalry of Dinon

At the start of the Damage Step, if this card battles a Pendulum Monster: This card's ATK and DEF become half its current ATK and DEF until the end of the Damage Step.

Steelswarm Caller

When a "Steelswarm" monster is Tribute Summoned face-up by Tributing this card: You can Special Summon 1 Level 4 or lower "Steelswarm" monster from your Deck.

Steelswarm Gatekeeper

If a "Steelswarm" monster is Tribute Summoned face-up while this card is face-up on the field, you can Normal Summon or Set 1 monster in addition to your Normal Summon or Set that turn.

Steelswarm Roach

2 Level 4 monsters
During either player's turn, when a Level 5 or higher monster would be Special Summoned: You can detach 1 Xyz Material from this card; negate the Special Summon, and if you do, destroy it.

Steelswarm Sting

When this card you control is sent to your Graveyard: Target 1 face-up Ritual, Fusion or Synchro Monster on the field; destroy that target.

Stellarknight Delteros

3 Level 4 monsters
While this card has Xyz Material, your opponent cannot activate cards or effects when you Normal or Special Summon a monster(s). Once per turn: You can detach 1 Xyz Material from this card, then target 1 card on the field; destroy it. If this card is sent from the field to the Graveyard: You can Special Summon 1 "tellarknight" monster from your hand or Deck.

Stellarknight Triverr

3 Level 4 "tellarknight" monsters
During the turn you Xyz Summon this card, you cannot Special Summon monsters, except "tellarknight" monsters. If this card is Xyz Summoned: Return all other cards on the field to the hand. Once per turn: You can detach 1 Xyz Material from this card; send 1 random card from your opponent's hand to the Graveyard. If this card with Xyz Material is sent to the Graveyard: You can target 1 "tellarknight" monster in your Graveyard; Special Summon it.

Stellarknight Zefraxciton

[ Pendulum Effect ]
You cannot Pendulum Summon monsters, except "tellarknight" and "Zefra" monsters. This effect cannot be negated.

If this card is Normal, Flip, or Pendulum Summoned: You can target 1 other "tellarknight" or "Zefra" card in your Monster Zone or Pendulum Zone, and 1 Set card your opponent controls; destroy them. You can only use this effect of "Stellarknight Zefraxciton" once per turn.

Stone Ghost

''With a head that erupts when angered, this monster launches a dangerous shower of boulders.''

Stone Statue of the Aztecs

Double any Battle Damage your opponent takes when they attack this monster.

Storm Cipher

Cannot attack directly, or attack monsters in the Extra Monster Zone. Unaffected by monster effects activated in the Extra Monster Zone. Cannot be destroyed by battle with monsters in the Extra Monster Zone.

Storming Wynn

Once per turn, you can Tribute 1 WIND monster (except this card) to Special Summon 1 WIND monster from your hand. The monster Special Summoned by this effect is destroyed if "Storming Wynn" is removed from your side of the field.

Strategist of the Ice Barrier

Once per turn, you can send 1 "Ice Barrier" monster from your hand to the Graveyard to draw 1 card.

Stream, Dragon Ruler of Droplets

You can discard this card AND 1 Dragon-Type or WATER monster; Special Summon 1 "Tidal, Dragon Ruler of Waterfalls" from your Deck. It cannot attack this turn. You can only use the effect of "Stream, Dragon Ruler of Droplets" once per turn.

Strength of Prophecy

Once per turn: You can shuffle 1 "Spellbook" Spell Card from your Graveyard into your Deck to target 1 face-up Spellcaster-Type monster on the field; increase its Level by 1 and its ATK by 500.

Strike Ninja

(Quick Effect): You can banish 2 DARK monsters from your GY; banish this face-up card until the End Phase. You can only use this effect of "Strike Ninja" once per turn.

Striping Partner

Cannot be Normal Summoned/Set. Must be Special Summoned by the following effect. If the effect activation of a monster you control is negated (except during the Damage Step): You can Special Summon this card from your hand.
When this card is Special Summoned: You can target 1 Level 4 or lower Cyberse monster in your GY; Special Summon it. You can only use this effect of "Striping Partner" once per turn.

Stronghold Guardian

If a Defense Position monster you control is attacked, you can send this card from your hand to the Graveyard during the Damage Step to have your attacked monster gain 1500 DEF until the End Phase.

Stygian Street Patrol

If this card destroys a monster by battle and sends it to the GY: Inflict damage to your opponent equal to the original Level of that monster in the GY x 100. You can banish this card from your GY; Special Summon 1 Fiend monster with 2000 or less ATK from your hand.

Suanni, Fire of the Yang Zing

When this card you control is destroyed by battle or card effect and sent to your Graveyard: You can Special Summon 1 "Yang Zing" monster from your Deck in Defense Position, except "Suanni, Fire of the Yang Zing". You can only use this effect of "Suanni, Fire of the Yang Zing" once per turn. Once per turn, during your opponent's Main Phase or Battle Phase, you can: Immediately after this effect resolves, Synchro Summon 1 Synchro Monster, using only "Yang Zing" monsters you control (this is a Quick Effect). A Synchro Monster that used this card as a Synchro Material gains 500 ATK and DEF.

Submarineroid

This card can attack your opponent directly, but when it does so using this effect, the battle damage inflicted to your opponent is the original ATK of this card. At the end of the Damage Step, if this card attacked or was attacked: You can change this card to Defense Position.

Subterror Guru 5

FLIP: You can add 1 "Subterror" card from your Deck to your hand, except "Subterror Guru". You can target 1 other face-up monster on the field; change that monster, also this card, to face-down Defense Position. This is a Quick Effect if you control another "Subterror" card. You can only use each effect of "Subterror Guru" once per turn.