Grave Robber Yao

You may cast Grave Robber Yao from your graveyard, but not from anywhere else.
When Yao enters the battlefield, put a card from
your graveyard on top of your library.
{1}{b}{b}, Sacrifice Yao: Choose target permanent
card in a graveyard that was put there from the battlefield this turn. Put that card onto the battlefield under your control.