MTG Single

Opal Acrolith [Urza's Saga]

$0.40
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Set: Urza's Saga
Type: Enchantment
Rarity: Uncommon
Cost: {2}{W}
Whenever an opponent casts a creature spell, if Opal Acrolith is an enchantment, Opal Acrolith becomes a 2/4 Soldier creature.
{0}: Opal Acrolith becomes an enchantment.