An uncommon, but visually dramatic body modification in the Cosmic era
Lavish glade and lush green field,
Wizen'd oaks; to the blight all yield.
Weeping trees of crimson blood,
the Fields of Flesh turn life to mud.
Will you tread and smile and sleep
where devils dance and angels weep?
A slow, stupid creature that crawls onto people and latches onto them, often on feet, hands, and other extremities, numbing down the area and slowly feeding on it. It's easy to avoid while awake, but nearly impossible to remove once attached. Many an adventurer has been forced to hack off an arm or leg after waking with a Stoneleech wrapped around it. Sleep with one eye open! (This idea came from "Wizard's Rule")