Khans of Tarkir
Witness of the Ages
Artifact Creature — Golem (4/4)
Khans of Tarkir — Uncommon
Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)
It strode through the clash of dragons, the fall of Ugin, and the rise of the khans.