Artifact Creature — Phyrexian Wurm - (uncommon)
Deathtouch, lifelink
When Wurmcoil Larva dies, create a 1/2 black Phyrexian Wurm artifact creature token with deathtouch and a 2/1 black Phyrexian Wurm artifact creature token with lifelink.
Even a scrap of Phyrexian machinery can be lethal.
