Blood Operative 
Creature — Vampire Assassin
Lifelink When this creature enters, you may exile target card from a graveyard. Whenever you surveil, if this card is in your graveyard, you may pay 3 life. If you do, return this card to your hand.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL