Urza's Incubator [Commander Anthology Volume II] H10 Duplicant has the power

Duplicant has the power

and then you're done

that target's ATK and DEF become half its current ATK and DEF

Set: Black & White: Next Destinies Type: Psychic Rarity: Ultra Rare Retreat cost: Colorless

and Y is half the number of Forests you control

Urza's Incubator [Commander Anthology Volume II] H10 Duplicant has the powerSet: Commander Anthology Volume II 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. "Stop thinking like an artificer, Urza, and start thinking like a father!" Rayne, chancellor of the Tolarian Academy