Crystal Brilliance
You can only control 1 "Crystal Brilliance". Each "Crystal Beast" monster you control gains ATK equal to its original DEF. If a "Crystal Beast" card(s) is placed in your Spell & Trap Zone, even during the Damage Step: You can send this face-up card to the GY; Special Summon 1 "Crystal Beast" monster from your hand or GY, also any damage you take this turn is halved.