Merger of Spheres

Worldbound {1}{p/c}{p/c}{p/u}{p/u} (You may cast this card from exile for its worldbound cost or return this card from exile onto the battlefield for its worldbound cost.)
Vanishing into exile 3 (This permanent enters the battlefield with three time counters on it. At the beginning of your upkeep, remove a time counter from
it. When the last is removed, exile it.)
Flying