Ancient City - Rainbow Ruins
This card gets these effects, based on the number of "Crystal Beast" monsters in your Spell & Trap Card Zone. ?1+: This card cannot be destroyed by a card effect. ?2+: Once per turn, you can halve the Battle Damage you take. ?3+: You can send 1 "Crystal Beast" monster you control to the Graveyard to negate the activation of a Spell or Trap Card and 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 Special Summon 1 "Crystal Beast" card from your Spell & Trap Card Zone.