Midnight Banshee 86 (Modern Masters 2015)

Wither (This deals damage to creatures in the form of -1/-1 counters.) At the beginning of your upkeep, put a -1/-1 counter on each nonblack creature.

NM - $4.20
LP - $3.40
MP - $2.60
HP - $1.70
DMG - $1.50