Slifer the Sky Dragon [YMA-EN001] Secret Rare Giant or Set this turn

or Set this turn

Set: Legendary Collection 5D's Card type: Continuous Spell Rarity: Ultra Rare Attack: 0 Defense: 0 When a "Blackwing" monster is Normal Summoned to your field: You can add 1 "Blackwing" monster from your Deck to your hand with less ATK than that monster

It gains 700 ATK

attach it to this card as material

Set: Phantom Nightmare Card type: Effect Monster Rarity: Quarter Century Secret Rare Attack: 800 Defense: 0 If a Link Monster is on the field or in either GY

Slifer the Sky Dragon [YMA-EN001] Secret Rare Giant or Set this turnSet: The Movie Ani Manga Promo Card type: Normal Monster Rarity: Secret Rare Attack: X000 Defense: X000 The heavens twist and thunder roars, signaling the coming of this ancient creature, and the dawn of true power.