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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
Kyren Flamewright Creature — Goblin Spellshaper {2}{R}, {T}, Discard a card: Create two 1/1 blue and red Elemental creature tokens. Creatures you control get +1/+0 and gain haste until end of turn. 3/3
Foul-Tongue Invocation 2BInstant As an additional cost to cast this spell, you may reveal a Dragon card from your hand. Target player sacrifices a creature. If you revealed a Dragon card or controlled a Dragon as you cast this spell, you gain 4 life.
Leave No Trace 1WInstant Radiance — Destroy target enchantment and each other enchantment that shares a color with it.
Knights of Thorn 3WCreature — Human Knight Protection from red; banding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.) 2/2
The Raven's Warning 1WUEnchantment — Saga (As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — Create a 1/1 blue Bird creature token with flying. You gain 2 life. II — Whenever one or more creatures you control with flying deal combat damage to a player this turn, look at that player's hand and draw a card. III — You may put a card you own from outside the game on top of your library.
Sigarda, Font of Blessings 2GWLegendary Creature — Angel Flying Other permanents you control have hexproof. You may look at the top card of your library any time. You may cast Angel spells and Human spells from the top of your library. 4/4
Serra Aviary 3WWorld Enchantment Creatures with flying get +1/+1.
Infernal Medusa 3BBCreature — Gorgon Whenever Infernal Medusa blocks a creature, destroy that creature at end of combat. Whenever Infernal Medusa becomes blocked by a non-Wall creature, destroy that creature at end of combat. 2/4
Ballynock Trapper 3WCreature — Kithkin Soldier {T}: Tap target creature. Whenever you cast a white spell, you may untap Ballynock Trapper. 2/2
Siren Stormtamer UCreature — Siren Pirate Wizard Flying {U}, Sacrifice Siren Stormtamer: Counter target spell or ability that targets you or a creature you control. 1/1
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