psi

Also: psionics, psionicist

The PSIONICIST class is a 'spellcasting' class similar to Mages and Clerics,
but with several important differences.  Where a Mage's power comes from
harnessing external energies present in all matter, and a Cleric's comes
from his or her deity, the Psionicist derives all of his or her power from
within. The Psionicist harnesses, shapes, and utilizes the natural forces
which infuse his or her own being.  As a result, many of the devotions that
a Psionicist can practice are strictly personal in effect, and cannot be
used on other players.