Chrome Host Seedshark [March of the Machine]

Set: March of the Machine Type: Creature — Phyrexian Shark Rarity: Rare Cost: {2}{U} FlyingWhenever you cast a noncreature spell, incubate X, where X is that spell's mana value. (Create an Incubator token with X +1/+ 1 counters on it and “{2}: Transform this artifact.” It transforms into a 0/0 Phyrexian artifact creature.)