Ancient City - Rainbow Ruins [FOTB-EN045] Rare

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 a ""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.