Urza's Incubator [Modern Horizons 3]

Set: Modern Horizons 3 Type: Artifact Rarity: Rare Cost: {3} As Urza's Incubator enters the battlefield, choose a creature type.Creature spells of the chosen type cost 2 less to cast. "Our recruitment efforts are bringing in fewer fresh troops every day. We need a new strategy."—Urza, to Tawnos