Plague-ridden Commoner

•At the beginning of your upkeep, put a
-1/-1 counter on Plague-ridden Commoner
and put a -1/-1 counter on target creature.
•{2}{b}{b} Sacrifice a creature: Return Plague ridden Commoner from the graveyard to the battlefield.
The plague is deadly. It harms not only the one
who is ill, but all