Septic Rats

Septic Rats

Creature - Phyrexian Rat | Power/Toughness: 2 / 2 (CMC 3)
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
Whenever Septic Rats attacks, if defending player is poisoned, it gets +1/+1 until end of turn.