Ozkar's Deathshifter

As long as Ozkar's Deathshifter is in your graveyard, whenever you transfigure a creature, you may search your graveyard instead of your library.
Transfigure {b}{b} ({b}{b}, Sacrifice this permanent: Search your library for a creature card with the same converted mana cost as this permanent and put that card onto the battlefield. Then shuffle your library. Transfigure only as a sorcery.)