Urza's Incubator [Commander Anthology Volume II] San Diego Comic-Con 2014 At the beginning of the

At the beginning of the upkeep of enchanted creature's controller

reveal that card

*Discourse on Method*

its controller reveals cards from the top of their library until an artifact or creature card is revealed and exiles that card

Set: From the Vault: Transform Type: Legendary Creature — Angel Horror Mythic Cost: {5}{W}{W} When you cast this spell

Urza's Incubator [Commander Anthology Volume II] San Diego Comic-Con 2014 At the beginning of theSet: Commander Anthology Volume II Type: Artifact 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. "Stop thinking like an artificer, Urza, and start thinking like a father!" Rayne, chancellor of the Tolarian Academy