name: Opal Titan
originalText: When one of your opponents successfully casts a creature spell, if Opal Titan is an enchantment, Opal Titan becomes a 4/4 creature with protection from each of that spell's colors and that counts as a Giant.
printings: USG
text: When an opponent casts a creature spell, if Opal Titan is an enchantment, Opal Titan becomes a 4/4 Giant creature with protection from each of that spell's colors.