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17 May 2024: Card library updated.

Opal Guardian

WWW · Enchantment

When an opponent casts a creature spell, if Opal Guardian is an enchantment, Opal Guardian becomes a 3/4 Gargoyle creature with flying and protection from red.

Similar cards

Color identity:
NameManaTypeText
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White Scarab WEnchantment — Aura Enchant creature Enchanted creature can't be blocked by white creatures. Enchanted creature gets +2/+2 as long as an opponent controls a white permanent.
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Burrowing REnchantment — Aura Enchant creature Enchanted creature has mountainwalk. (It can't be blocked as long as defending player controls a Mountain.)
The Caldaia Plane — Capenna Creature spells you cast from your hand have blitz {3}. (If you cast a spell for its blitz cost, it gains haste and "When this creature dies, draw a card." Sacrifice it at the beginning of the next end step.) Whenever chaos ensues, return target creature card from your graveyard to your hand.
Hostage Taker 2UBCreature — Human Pirate When Hostage Taker enters the battlefield, exile another target creature or artifact until Hostage Taker leaves the battlefield. You may cast that card for as long as it remains exiled, and mana of any type can be spent to cast that spell. 2/3
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