Hapatra, the Desert Fang 271 (Reality Fracture)

When Hapatra enters, for each opponent, put X -1/-1 counters on up to one target creature that player controls, where X is the greatest mana value among cards in your graveyard.

NM - $3.80
LP - $3.10
MP - $2.30
HP - $1.60
DMG - $0.80