Urza continues his quest across Dominaria for artifacts capable of holding off the Phyrexian invasion. The Yavimaya forest reluctantly provides the seed to grow a flying ship which, along with the artifacts, are to become Urza's Legacy. Urza continues to build a collection of artifacts that will defeat the Phyrexian invasion, and, after discovering the Thran mana rig in Shiv and beginning to rebuild the Tolarian Academy, Urza splits his time between the two projects.