SDCB-EN010 * Crystal Keeper * Common * Structure Deck: Legend of the Crystal Beasts SUDA-EN078 You can only use each

You can only use each effect of "Cartorhyn the Hidden Gem of the Seafront" once per turn

or Special Summoned (from your Extra Deck) in Defense Position by Tributing 3 monsters with different Types

If your opponent controls no monsters

and shuffle the materials into the Deck instead of sending them to the GY

your opponent cannot declare an attack

SDCB-EN010 * Crystal Keeper * Common * Structure Deck: Legend of the Crystal Beasts SUDA-EN078 You can only use each[ Pendulum Effect ] Each turn, the first time an "Ultimate Crystal" monster(s) and or "Crystal Beast" card(s) you control would be destroyed by card effect that turn, it is not destroyed. [ Monster Effect ] 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 field; your battling monster's ATK DEF become double its original ATK DEF during