Hag's Crone

At the beginning of your upkeep Mark a target. (Marked creatures can be attacked by creatures with Marked Attack until your next upkeep.)
Position 1 or 2 — {3}{b/g}{b/g}: Put a -1/-1 counter on target creature you don't control. If a creature were to die from -1/-1 counters, put a stress counter on target creature you don't control.
"A death by inches..."
— the Ancestor