Crystal Keeper [MP19-EN066] Common SM37 negate the effects of that

negate the effects of that card while it and this monster are face-up on the field

Set: Sun & Moon: Crimson Invasion Type: Supporter Rarity: Promo

Set: 2019 Gold Sarcophagus Tin Mega Pack Card type: Effect Monster Rarity: Common Attack: 2200 Defense: 2200 If this card is Normal or Special Summoned: You can pay 1000 LP

halve that target's ATK

select 1 card on your opponent''s side of the field and destroy it

Crystal Keeper [MP19-EN066] Common SM37 negate the effects of thatSet: 2019 Gold Sarcophagus Tin Mega Pack Card type: Pendulum Effect Monster Rarity: Common Attack: 1500 Defense: 1800 If a "Crystal Beast" monster you control battles an opponent's monster, during damage calculation (Quick Effect): You can Tribute this card from your hand or face up from your field; your battling monster's ATK DEF become double its original ATK DEF during that damage calculation only, but it is destroyed at the end of this Damage Step.