Sparkling Serpent {4}{G}{U}
Creature - Serpent
When Sparkling Serpent enters, if four or more colors of mana were spent to cast it, crystallize.
Whenever you cast a spell, if four or more colors of mana were spent to cast it, crystallize.
Whenever you cast a spell, if four or more colors of mana were spent to cast it, crystallize.
6/6