Urza's Incubator [C15 - 273]

Rarity: R #: 273 Creature Type or Sub Type: Artifact Rules Text Contains: As Urza's Incubator enters the battlefield, choose a creature type. Creature spells of the chosen type cost 2 less to cast. Flavor: "Stop thinking like an artificer, Urza, and start thinking like a father!"—Rayne, chancellor of the Tolarian Academy