Urza's Incubator [Commander 2015] Merfolk Wizard Set: Planechase Type: Land Rarity:

Set: Planechase Type: Land Rarity: Uncommon {2}

{T}: Target creature loses first strike or swampwalk until end of turn

Set: Antiquities Type: Enchantment Rarity: Uncommon Cost: {2}{W} Players can't untap more than one artifact during their untap steps

Set: Ice Age Type: Artifact Rarity: Uncommon Cost: {0} {T}

Especially revolution

Urza's Incubator [Commander 2015] Merfolk Wizard Set: Planechase Type: Land Rarity: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