High Fae Negotiator 
Creature — Faerie Warlock
Bargain (You may sacrifice an artifact, enchantment, or token as you cast this spell.) Flying When this creature enters, if it was bargained, each opponent loses 3 life and you gain 3 life.
Legality
standardLEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL