If a Dragon Xyz Monster declares an attack: Attach this card on the field to it as material. You can only use each of the following effects of "Galaxy-Eyes Tachyon Primal" once per turn. If a Dragon Xyz Monster is on the field (Quick Effect): You can Special Summon this card from your hand to either field. If this card is Normal or Special Summoned: The owner of this card adds 1 "Tachyon" Spell/Trap from their Deck to their hand.
If you control a "Galaxy-Eyes Tachyon Dragon" monster, you can activate this card from your hand. During the Battle Phase: Detach 1 material from your "Galaxy-Eyes" Xyz Monster; shuffle all monsters your opponent controls that were Normal or Special Summoned this turn into the Deck. If you control a "Number C" monster, this card's activation and effect cannot be negated. You can only activate 1 "Lord of the Tachyon Galaxy" per turn.
2 Level 8 monsters
Once per Battle Phase, at the start of your Battle Phase: You can detach 1 material from this card; all other face-up monsters currently on the field have their effects negated, also their ATK/DEF become their original ATK/DEF, and if you do any of these, during the Battle Phase this turn, each time an opponent's card effect resolves, this card gains 1000 ATK until the end of the Battle Phase, also, it can make a second attack during each Battle Phase this turn.
3 Level 9 monsters
Once per turn: You can detach 1 Xyz Material from this card; until the end of this turn, negate the effects of all other face-up cards currently on the field, also your opponent cannot activate cards or effects on the field. If this card has "Number 107: Galaxy-Eyes Tachyon Dragon" as an Xyz Material, it gains this effect.
â—Ź You can Tribute 2 monsters; this card can make up to 3 attacks on monsters during each Battle Phase this turn.
Reveal 1 "Number" Xyz Monster in your Extra Deck that has a number between "101" and "107" in its name; add 1 monster from your Deck to your hand with the same Type or Attribute as that monster, and the same Level as that monster's Rank, then place 1 card from your hand on top of the Deck, also for the rest of this turn after this card resolves, you cannot Special Summon from the Extra Deck, except Xyz Monsters. You can only activate 1 "Seventh Tachyon" per turn.
When a face-up "Galaxy" Xyz Monster(s) you control is destroyed by battle with an opponent's attacking monster, or by an opponent's card effect, and sent to your Graveyard: Destroy as many face-up cards your opponent controls as possible, and if you do, banish them. During your Draw Phase, if this card is in your Graveyard, instead of conducting your normal draw: You can banish this card, then target 1 "Galaxy" Xyz Monster in your Graveyard; Special Summon that target.
If this card is added to your hand, except by drawing it: You can Special Summon this card. You can Tribute this card; Special Summon 1 "Tachyon" monster from your Deck or GY, except "Tachyon Cloudragon". If you Special Summon a Dragon Xyz Monster(s) (except during the Damage Step): You can target 1 of them; attach this card to that monster, from the GY (if it was there when the monster was Special Summoned) or hand (even if not), as material. You can only use each effect of "Tachyon Cloudragon" once per turn.
Target 1 Dragon "Galaxy" monster you control; until the end of this turn, it cannot be destroyed by battle, also it is unaffected by other card effects, except its own. You can only activate 1 "Tachyon Spiral Galaxy" per turn. If you control a "Galaxy-Eyes Tachyon Dragon" monster, you can activate this card from your hand.
Activate 1 of these effects (but you can only use each effect of "Tachyon Spiral of Destruction" once per turn);
â—Ź If you control a "Galaxy" Xyz Monster: Destroy all face-up cards your opponent controls whose effects are negated.
â—Ź Target 1 "Tachyon" card in your GY, except "Tachyon Spiral of Destruction"; add it to your hand.
â—Ź Target 1 Dragon "Number" monster in your GY; Special Summon it in Defense Position.
If you control a "Galaxy-Eyes" monster: Negate the activations of your opponent's Spell/Trap Cards and monster effects activated before this card in this Chain, and if you do, shuffle the negated cards on the field into the Deck. If you control a "Galaxy-Eyes Tachyon Dragon" monster, you can activate this card from your hand.