Pendulum Effect
Once per turn, 'Crystal Beast' cards, 'Rainbow Dragons' and/or 'Rainbow Dark Dragons' you control cannot be destroyed by your opponent's card effect.
Monster Effect
During damage calculation (in either player's turn), if a 'Crystal Beast' monster you control battles an opponent’s monster: You can Tribute this card from your hand or your side of the field; your battling monster's ATK and DEF each become double its original ATK and DEF during that damage calculation only, but it is destroyed at the end of this Damage Step.
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