Slifer the Sky Dragon [JUMP-EN061] Ultra Rare Super Rare or monster effect

or monster effect

your opponent cannot activate Spell/Trap Cards until the end of the Damage Step

or card effects

Set: Shonen Jump Magazine Promos Card type: Synchro/Tuner/Effect Monster Rarity: Ultra Rare Attack: 2100 Defense: 1700 1 Tuner + 1+ non-Tuner monster If this card is Synchro Summoned: You can send 1 monster from your Deck to the GY with a Level lower than this card's on the field

and you send that target to the Graveyard

Slifer the Sky Dragon [JUMP-EN061] Ultra Rare Super Rare or monster effectSet: 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