2 Level 4 monsters
Other LIGHT monsters you control gain 500 ATK. You can only use each of the following effects of "Galaxy Photon Dragon" once per turn. You can detach 1 material from this card; either add 1 "Photon" or "Galaxy" card from your Deck to your hand, or send it to the GY. If a LIGHT monster(s) is Special Summoned to your field (except during the Damage Step): You can target 1 of those monsters; its Level becomes 4 or 8 until the end of this turn.
3 Level 8 monsters
You can also Xyz Summon this card by using a "Galaxy-Eyes" Xyz Monster you control as material, except "Galaxy-Eyes Full Armor Photon Dragon". (Transfer its materials to this card.) Once per turn: You can target up to 2 Equip Cards equipped to this card; attach them to this card as material. Once per turn: You can detach 1 material from this card, then target 1 face-up card your opponent controls; destroy it.
You can Special Summon this card (from your hand) by Tributing 2 face-up monsters on either field with 2000 or more ATK, including a monster you control. You can only Special Summon "Galaxy-Eyes Photon Change Dragon" once per turn this way. During the Main Phase (Quick Effect): You can banish this card you control; Special Summon 1 "Galaxy-Eyes Photon Dragon" from your Deck or GY, then you can banish 1 monster your opponent controls that was Special Summoned from the Extra Deck until the End Phase. You can only use this effect of "Galaxy-Eyes Photon Change Dragon" once per turn.
You can Special Summon this card (from your hand) by Tributing 2 monsters with 2000 or more ATK. During the Battle Step, if this card battles an opponent's monster (Quick Effect): You can target that opponent's monster; banish both this card from the field and that target. Return those banished monsters to the field at the end of the Battle Phase, and if you banished an Xyz Monster, this card gains 500 ATK for each material it had when it was banished.
(Quick Effect): You can send this card from your hand to the GY and pay 2000 LP; you take no damage this turn. If this card is in your GY: You can send 1 "Photon" monster from your hand to the GY, except "Kuriphoton"; add this card from your GY to your hand. You can only use this effect of "Kuriphoton" once per turn.
3 Level 8 monsters
If this card is Xyz Summoned using "Galaxy-Eyes Photon Dragon" as any of its materials: All other face-up cards currently on the field have their effects negated. Once per turn: You can detach 1 material from this card; detach all materials from monsters your opponent controls, then this card gains 500 ATK for each, also it can attack up to that many times during each Battle Phase this turn.
3 Level 8 monsters
Once per turn, you can also Xyz Summon "Neo Galaxy-Eyes Photon Dragon - Photon Howling" by using 1 Rank 8 Xyz Monster you control (transfer its materials). If this card is Xyz Summoned: You can take 1 "Photon" monster from your Deck, and either Special Summon it in Defense Position or attach it to this card as material. (Quick Effect): You can detach 3 materials from this card; Tribute 1 other Xyz Monster, and if you do, negate the effects of all other face-up cards currently on the field until the end of this turn.
2 Level 8 monsters
If this card battles, during damage calculation (Quick Effect): You can detach 1 material from this card once per battle; this card gains ATK equal to the combined Ranks of all Xyz Monsters currently on the field x 200, during that damage calculation only. If this card in its owner's control is destroyed by an opponent's card effect while it has "Galaxy-Eyes Photon Dragon" as Xyz Material: You can Special Summon this card during your 2nd Standby Phase after activation and double its ATK. Any battle damage this card inflicts to your opponent is halved unless it has "Galaxy-Eyes Photon Dragon" as Xyz Material.
2 Level 8 monsters
If this card has a "Photon" card as material, it cannot be destroyed by card effects. You can only use each of the following effects of "Number 90: Galaxy-Eyes Photon Lord" once per turn.
â—Ź When an opponent's monster activates its effect (Quick Effect): You can detach 1 material from this card; negate that monster's effect, and if the detached material was a "Galaxy" card, destroy that card.
â—Ź During your opponent's turn (Quick Effect): You can take 1 "Photon" or "Galaxy" card from your Deck, and either add it to your hand or attach it to this card as material.
3 Level 8 LIGHT monsters
You can also Xyz Summon this card by using "Number 62: Galaxy-Eyes Prime Photon Dragon" you control. (Transfer its materials to this card.) At the start of your Battle Phase: You can detach 1 material from this card; this card can make up to 3 attacks on monsters during this Battle Phase. If this card has "Galaxy-Eyes Photon Dragon" as material, it gains these effects.
â—Ź Unaffected by your opponent's monster effects.
â—Ź Gains ATK equal to the combined Levels/Ranks of its attached materials x 100.
You can Ritual Summon this card with "Luminous Dragon Ritual". You can Tribute this card; Special Summon 1 "Galaxy-Eyes Photon Dragon" from your hand or Deck. When this card destroys an opponent's monster by battle and sends it to the Graveyard: Draw 1 card.
If a "Photon" monster is on the field, you can Special Summon this card (from your hand). You can only Special Summon "Photon Advancer" once per turn this way. Gains 1000 ATK if another "Photon" monster is on the field.
2 Level 4 "Butterspy" monsters
You can detach 1 Xyz Material from this card; return all monsters on the field to the hand, then inflict 300 damage to each player for each card returned to their hand.
When this card is Normal or Flip Summoned: You can Special Summon 1 "Photon Caesar" from your hand or Deck.
During the turn this card was Normal Summoned, neither player can activate Trap Cards while this card is face-up on the field.
Once per turn: You can make this card's ATK become double its original ATK, until your next Standby Phase. This card cannot attack the turn you activate this effect.
Any Battle Damage you take from battles involving this card is halved.
If this card attacks, it is changed to Defense Position at the end of the Damage Step.
If this card is Normal Summoned: You can Special Summon 1 "Photon Delta Wing" from your hand or Deck in Defense Position, also you cannot Special Summon for the rest of this turn, except LIGHT monsters. Your opponent cannot declare an attack while you control another "Photon Delta Wing".
If this card is sent to the GY, except from the field, while another "Photon" or "Galaxy" monster is on your field or in your GY: You can Special Summon this card in Defense Position. You can only use this effect of "Photon Emperor" once per turn. After you Normal or Special Summon this card, you can Normal Summon 1 LIGHT monster during your Main Phase this turn, in addition to your Normal Summon/Set. (You can only gain this effect once per turn.)
When an opponent's monster declares an attack: You can activate this effect; skip your next Battle Phase, also Special Summon this card from your hand, then end this Battle Phase. If this card is sent to the GY: You can add 1 "Photon" or "Galaxy" Spell/Trap from your Deck to your hand. You can only use each effect of "Photon Jumper" once per turn.
When this card is Normal Summoned: You can have your opponent shuffle their entire hand into the Deck, then they draw the same number of cards as they shuffled into the Deck.
You can Tribute this card; add 1 Level 4 or lower "Photon" monster from your Deck to your hand. You can only use this effect of "Photon Lizard" once per turn.
During your Main Phase: You can target 1 "Photon" or "Galaxy" monster you control; equip this monster from your hand or field to that target. It gains 500 ATK, also it cannot be destroyed by battle. You can send this Equip Card to the GY; add 1 "Photon" or "Galaxy" monster from your Deck to your hand, except "Photon Orbital". You can only use this effect of "Photon Orbital" once per turn.
2 Level 4 monsters
Once per turn: You can detach 1 Xyz Material from this card, then target 1 Defense Position monster on the field; change it to face-up Attack Position, and if you do, it loses 600 ATK.
You can banish 1 "Photon" monster from your Graveyard; this card gains 1000 ATK until the End Phase. You can use the effect of "Photon Pirate" up to twice per turn.
When this card is Normal or Flip Summoned: You can add 1 "Photon Sabre Tiger" from your Deck to your hand. If you do not control another "Photon Sabre Tiger", this card loses 800 ATK.
Once per turn: You can target 1 other "Photon" monster you control; the Levels of both that monster and this card become the combined current Levels of those 2 monsters.
If a face-up Xyz Monster is on the field, you can Special Summon this card (from your hand) in face-up Defense Position.
2 Level 6 monsters
Once per turn, during either player's turn, when a monster effect is activated on your opponent's side of the field: You can detach 1 Xyz Material from this card; negate the effect, and if you do, inflict 1000 damage to your opponent.
Cannot be Normal Summoned/Set. Must first be Special Summoned (from your hand) while you control no monsters. Cannot attack if you control another monster.
Cannot be Normal Summoned/Set. Must first be Special Summoned (from your hand) while you control a "Photon" or "Galaxy" monster. Cannot attack the turn it is Special Summoned. You can only Special Summon "Photon Vanisher(s)" once per turn. If this card is Special Summoned: You can add 1 "Galaxy-Eyes Photon Dragon" from your Deck to your hand. An Xyz Monster that was Summoned using this card on the field as material gains this effect.
â—Ź Banish any monster destroyed by battle with this card.
When this card is Normal or Flip Summoned: Destroy all Set cards your opponent controls.
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.
2 "Photon" monsters
You can Tribute this card; Special Summon, from your Graveyard, both of the Fusion Material Monsters used for the Fusion Summon of this card.