Crystal Keeper | Secrets of Eternity | Rare | SECE-JP082

Region: Japanese
Card Name: Crystal Keeper
Code: SECE-JP082
Rarity: Rare
Passcode: 31620
Type: Warrior
Race: Effect Monster
Archetype:

LEVEL: 4
ATK: 1500
DEF: 1800

If a “Crystal Beast” Monster Card you control battles an opponent’s monster, during damage calculation (Quick Effect): You can Tribute this card from your hand or face-up 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.