Skithiryx, the Blight Dragon

Skithiryx, the Blight Dragon (zhs)

Legendary Creature - Phyrexian Dragon Skeleton | Power/Toughness: 4 / 4 (CMC 5)
Flying
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
: Skithiryx, the Blight Dragon gains haste until end of turn.
: Regenerate Skithiryx.