$41.71
Urza's Incubator 
Artifact
Commander 2015 Rare
As Urza's Incubator enters the battlefield, choose a creature type.
Creature spells of the chosen type cost
less to cast.
Creature spells of the chosen type cost
less to cast."Stop thinking like an artificer, Urza, and start thinking like a father!"—Rayne, chancellor of the Tolarian Academy
#273 — Illus. Pete Venters