Opal Titan (USG) (#26)

Name: Opal Titan
Mana Cost: {2}{W}{W}
Type: Enchantment
Collector Number: 26
Oracle 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.
Rarity: rare
Artist: Paolo Parente