Soul Nibbler

This creature appears to be a grayish-brown rat about a foot long.

Soul Nibbler CR 2

XP 600
N Tiny magical beast
Init +2; Senses darkvision 60 ft., low-light vision, scent; Perception +5

hp 5 (1d10)
Fort +2, Ref +4, Will +1
Immune necromancy spells

Melee bite +5 (1d3-4 plus energy drain)
Space 2-1/2 ft.; Reach 0 ft.
Special Attacks energy drain (1 level, DC 10)

Base Atk +1; CMB +1; CMD 7 (11 vs trip)
Feats Weapon Finesse
Skills Climb +10, Perception +5, Stealth +10

Environment any
Organization swarm (10-20)
Treasure none

Soul nibblers are rats that have undergone genetic mutation due to continued feeding on essence ingots (see sidebar). The biological effects of a prolonged consumption of soul stuff are minimal. Soul nibblers are always black in color, and their eyes sometime glow with a sickly light. The magical changes wrought by their unholy diet, however, are more profound, granting the soul nibblers unique necromantic abilities.

Having begun life as normal rats, soul nibblers behave in combat much like their mundane cousins. The primary difference between soul nibblers and standard rats is their bond to dark magic, which grants them the powers of energy drain and necromantic immunity.