Zero-Day Blaster [SDRR-EN033] Super Rare
1st Edition - NM
Not Buying
![Crystal Keeper [MP19-EN066] Common](https://cdn.shopify.com/s/files/1/0524/2277/0879/products/54ec09ce-3397-5b21-b650-9d22179790fa.png?v=1698416717)
Crystal Keeper [MP19-EN066] Common
| Set: | 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.