Haste
Whenever a creature an opponent controls dies, put a +1/+1 counter on Yahenni, Undying Partisan.
Sacrifice another creature: Yahenni gains indestructible until end of turn.
Non Foil / Near Mint - $0.58
Non Foil / Slightly Played - $0.52
Non Foil / Moderately Played - $0.46
Non Foil / Heavily Played - $0.35
Non Foil / Damaged - $0.29