Yawgmoth, Thran Physician 116 (Modern Horizons)

Protection from Humans Pay 1 life, Sacrifice another creature: Put a -1/-1 counter on up to one target creature and draw a card. {B}{B}, Discard a card: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

NM - $50.40
LP - $40.30
MP - $30.20
HP - $20.20
DMG - $10.10