They stalk others from across the veil & when these monsters from beyond find a target no force within Heaven or Hell will stay them from their targets. They will track their charges from across the myriad wastelands of the dimensional hells to satisfy their insane lusts for life force.
The monsters will attack with 2 claws for 1d3 points of damage for each strike. These monsters also have the ability to disrupt the vital energy centers within standard reality bodies.This causes the body to be exposed to the hostile astral forces that lurk just outside normal reality. The Chakra Disruption causes (1d4) points of damage & allows astral parasites to attach themselves to to the host.
The Rnacya-eli also will steal 1d30 years from their victim greedily sucking up the potential energies of the victim. This will age the victim the same number of years as those energies stolen. The fear,cruelty, & torture caused by the monster feeds them as much as the essence of the years they steal.
Certain strange weird forbidden rites dedicated to the Outer Ones can create the Rnacya-eli. Still many sorcerer become victims of the Gods of The Outer Darkness & think that they have escaped. Only later the victim discovers the horrid truth as their skin & existence flake away into the void. The poor fool is drawn into realm of non existence only to discover the gnawing hunger that lurks within them.
There are those who seek this existence as a form of twisted immortality. Better to die from screaming madness then have the taint of the Outer Ones upon one's soul. The Rnacya-eli lurk just outside of eye sight , there over the shoulder, watching, waiting, stalking the next victim.