You must have this many Crystal Beast cards in your Spell & Trap Card Zone to activate and to resolve these effects.
• 1+: This card cannot be destroyed by card effects.
• 2+: Once per turn (including the opponent s) you can halve the Battle Damage you take.
• 3+: During either player s turn, when a Spell Trap Card is activated: You can send 1 Crystal Beast monster you control to the GY; negate the activation, and if you do, destroy it.
• 4+: Once per turn, during your Main Phase: You can draw 1 card.
• 5: Once per turn, during your Main Phase: You can target 1 Crystal Beast card in your Spell & Trap Card Zone; Special Summon that target.