Card Codex

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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
Gatstaf Howler Creature — Werewolf Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.) At the beginning of each upkeep, if a player cast two or more spells last turn, transform Gatstaf Howler. 3/3
Pristine Angel 4WWCreature — Angel Flying As long as Pristine Angel is untapped, it has protection from artifacts and from all colors. Whenever you cast a spell, you may untap Pristine Angel. 4/4
Mantle of the Ancients 3WWEnchantment — Aura Enchant creature you control When Mantle of the Ancients enters the battlefield, return any number of target Aura and/or Equipment cards from your graveyard to the battlefield attached to enchanted creature. Enchanted creature gets +1/+1 for each Aura and Equipment attached to it.
Ragemonger 1BRCreature — Minotaur Shaman Minotaur spells you cast cost {B}{R} less to cast. This effect reduces only the amount of colored mana you pay. (For example, if you cast a Minotaur spell with mana cost {2}{R}, it costs {2} to cast.) 2/3
Stamina 2GEnchantment — Aura Enchant creature Enchanted creature has vigilance. Sacrifice Stamina: Regenerate enchanted creature.
Fear BBEnchantment — Aura Enchant creature (Target a creature as you cast this. This card enters the battlefield attached to that creature.) Enchanted creature has fear. (It can't be blocked except by artifact creatures and/or black creatures.)
Lifelink WEnchantment — Aura Enchant creature Enchanted creature has lifelink. (Damage dealt by the creature also causes its controller to gain that much life.)
Vigilance WEnchantment — Aura Enchant creature Enchanted creature has vigilance. (Attacking doesn't cause it to tap.)
Lullmage's Familiar 1GUCreature — Beast {T}: Add {G} or {U}. Whenever you cast a kicked spell, you gain 2 life. 2/4
Errant Ephemeron 6UCreature — Illusion Flying Suspend 4—{1}{U} (Rather than cast this card from your hand, you may pay {1}{U} and exile it with four time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost. It has haste.) 4/4
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