Osgir, the Reconstructor

Vigilance
{1}, Sacrifice an artifact: Target creature you control
gets +2/+0 until end of turn.

{x},{t}, Exile an artifact card with mana value X
from your graveyard: Create two tokens that are
copies of the exiled card. Activate only as a sorcery

I am the bone of my sword
So as I pray, Unlimited Blade Works.