Urza's Incubator [Commander Anthology Volume II] Arabian Nights if that spell's mana cost

if that spell's mana cost is {3}{U}{U}

If an effect causes you to discard a card

If each of those creatures could block all creatures that the other is blocking

"How easily your flames are quenched

Activate only during the end of combat step

Urza's Incubator [Commander Anthology Volume II] Arabian Nights if that spell's mana costSet: 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