Pit Keeper 
Creature — Human Wizard
When this creature enters, if you have four or more creature cards in your graveyard, you may return target creature card from your graveyard to your hand.
Legality
standardNOT LEGALpioneerNOT LEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL