Leech Wyrm

The favored host of the parasitic Chasm Leech species from the Sea of Claws is the Sea Dragon.

A Leech Wyrm is a former Sea Dragon that has been slain, infested and reanimated as the result of an infection by a species of undersea life known as Chasm Leeches. Their only purpose is to slay other creatures to provide more sustenance for new generations of Chasm Leeches.

Chasm Leeches are worms that live on the ocean floor, attracted by large concentrations of Dhar, Dark Magic. They are not, in and of themselves, fierce animals. Their mouthparts are lined with rasping teeth, but the leeches are sluggish and soft-bodied, and in order for them to ingest the flesh that makes up their diet, that meat must already be well on the way to putrefaction.

When Chasm Leeches locate a corpse, they worm their way inside the body and multiply. A corpse infested with Chasm Leeches may start to move once again, the leeches replacing the sinew and muscle of the decayed creature with their own bodies. Now that they have a host, the Chasm Leeches are dangerous -- to sustain their lifecycle, they must send more corpses to the depths. As no magic is involved, the infested corpse is not actually a form of true Undead.

The Sea Dragon is the preferred host of the Chasm Leeches, for it possesses enough flesh to keep them fed for many years, whilst providing them with a powerful and massive host body capable of slaying other creatures for the next generation of Chasm Leeches to inhabit.