Card Codex

M:tG card similarity search

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
Evil Eye of Urborg 4BCreature — Eye Non-Eye creatures you control can't attack. Whenever Evil Eye of Urborg becomes blocked by a creature, destroy that creature. 6/3
Protean War Engine RWArtifact — Vehicle As Protean War Engine enters the battlefield, draft a card from Protean War Engine's spellbook and exile it. Whenever Protean War Engine becomes crewed, until end of turn, it becomes a copy of the exiled card, except it's a Vehicle artifact in addition to its other types. Crew 3 0/4
Restless Fortress Land Restless Fortress enters the battlefield tapped. {T}: Add {W} or {B}. {2}{W}{B}: Restless Fortress becomes a 1/4 white and black Nightmare creature until end of turn. It's still a land. Whenever Restless Fortress attacks, defending player loses 2 life and you gain 2 life.
Transcendent Master 1WWCreature — Human Cleric Avatar Level up {1} ({1}: Put a level counter on this. Level up only as a sorcery.) LEVEL 6-11 6/6 Lifelink LEVEL 12+ 9/9 Lifelink, indestructible 3/3
Peacewalker Colossus 3Artifact — Vehicle {1}{W}: Another target Vehicle you control becomes an artifact creature until end of turn. Crew 4 (Tap any number of creatures you control with total power 4 or more: This Vehicle becomes an artifact creature until end of turn.) 6/6
Rust Scarab 4GCreature — Insect Whenever Rust Scarab becomes blocked, you may destroy target artifact or enchantment defending player controls. 4/5
Touch of Darkness BInstant One or more target creatures become black until end of turn.
Chambered Nautilus 2UCreature — Nautilus Beast Whenever Chambered Nautilus becomes blocked, you may draw a card. 2/2
Parapet 1WEnchantment You may cast Parapet as though it had flash. If you cast it any time a sorcery couldn't have been cast, the controller of the permanent it becomes sacrifices it at the beginning of the next cleanup step. Creatures you control get +0/+1.
Sky Theater Strix 1UCreature — Bird Flying Whenever you cast a noncreature spell, Sky Theater Strix gets +1/+0 until end of turn. 1/2
Page 64