edhseer Commander synergy, explained
Enchantment
Mana cost: {W}{W}{W}
When an opponent casts a creature spell, if this permanent is an enchantment, this enchantment becomes a 3/4 Gargoyle creature with flying and protection from red.
triggered — turns something into a creature
triggered — grants a keyword
Causes: nothing.
Cares about: nothing.
an enchantment is cast — 3,673 cards in the game can cause this (Opal Guardian is one).
When Opal Guardian is cast:
255 other cards care about it too. These are the ones with the most connections.
a nontoken enchantment enters the battlefield — 3,691 cards in the game can cause this (Opal Guardian is one).
an enchantment enters the battlefield — 3,743 cards in the game can cause this (Opal Guardian is one).
When Opal Guardian enters:
59 other cards care about it too. These are the ones with the most connections.