Phyrexian Swarmlord
From Phyrexia: All Will Be One Commander set
Phyrexian Swarmlord
Creature — Phyrexian Insect Horror
4/4
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
At the beginning of your upkeep, create a 1/1 green Phyrexian Insect creature token with infect for each poison counter your opponents have.