Core Prowler

Core Prowler

Artifact Creature - Phyrexian Horror | Power/Toughness: 2 / 2 (CMC 4)
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
When Core Prowler dies, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)