Urza's Incubator [Commander 2015]Set: Commander 2015 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

Set: Odyssey Type: Sorcery Rarity: Rare Cost: {3}{R} Untap target creature

exile target creature

Set: Magic 2015 Clash Pack Type: Creature — Human Wizard Rarity: Rare Cost: {3}{G}{U} Untap all creatures and lands you control during each other player's untap step

Set: Onslaught Type: Sorcery Rarity: Rare Cost: {5}{R}{R}{R} Untap all creatures and gain control of them until end of turn

instead add one mana of any color

Cephalid Coliseum deals 1 damage to you

Lord of Leaves

quantity is quality

When Dualcaster Mage enters the battlefield

chancellor of the Tolarian Academy

if you control the artifact with the highest mana value or tied for the highest mana value

so does the Nightmare's rage and terrifying strength