MtG Mirrodin Besieged Rare Phyrexian Hydra #85

Creature - Hydra. 3GG. 7/7. Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) If damage would be dealt to Phyrexian Hydra, prevent that damage. Put a -1/-1 counter on Phyrexian Hydra for each 1 damage prevented this way.