Slifer the Sky Dragon [JUMP-EN061] Ultra Rare Champion Pack 1 Set: The Grand Creators Card

Set: The Grand Creators Card type: Effect Monster Rarity: Collector's Rare Attack: 1600 Defense: 1800 Once per turn: You can equip 1 "Inzektor" monster from your hand or GY to this card

but while this effect is applied

) You can target 1 EARTH monster in your opponent's GY

You can only activate 1 "Spellbook of Power" per turn

Take control of the selected monster until the End Phase of this turn

Slifer the Sky Dragon [JUMP-EN061] Ultra Rare Champion Pack 1 Set: The Grand Creators CardSet: Shonen Jump Magazine Promos Card type: Effect Monster Rarity: Ultra Rare Attack: ? Defense: ? Requires 3 Tributes to Normal Summon (cannot be Normal Set). This card's Normal Summon cannot be negated. When Normal Summoned, cards and effects cannot be activated. During the End Phase, if this card was Special Summoned: Send it to the Graveyard. This card gains 1000 ATK and DEF for each card in your hand. When a monster(s) is Normal or Special