Darksteel Warden

Indestructible, Hexproof.

"Shortly after we unearthed the colossal statue, it came to life. We were terrified at first, as it stood fourteen feet tall, but then it spoke. It spoke of an ancient time, the time of the Ancients, its masters. It spoke of a terrible conflict against a foe alien to this plane. It spoke of the errors of his masters that led to their demise, and to its own. It then asked us if we would repeat the same mistakes. We stood silent."
-Senior mage Yoon, Expedition logbook.