Ancient City - Rainbow Ruins

This card gets these effects, based on the number of "Crystal Beast" monsters in your Spell & Trap Card Zone. <br>•1+: This card cannot be destroyed by a card effect. <br>•2+: Once per turn, you can halve the Battle Damage you take. <br>•3+: You can send a "Crystal Beast" monster you control to the Graveyard to negate the activation of a Spell or Trap Card and destroy it. <br>•4+: Once per turn, during your Main Phase, you can draw 1 card. <br>•5+: Once per turn, during your Main Phase, you can Special Summon 1 "Crystal Beast" card from your Spell & Trap Card Zone.