Sellen, Thought

Whenever another creature you control dies, you may once per turn exile it instead and return it to the battlefield tapped. It is a land and becomes a Plains if it was white, an Island if it was blue, a Swamp if it was black, a Mountain if it was red and a Forest if it was green. (It loses all its other card types.) Sacrifice two lands: Sellen, Thought phases out. Scry 2.