Curse of the Ravenous (Su): Arutars are unnatural blights upon the planes, even more corrupted by chaos than the ‘True Gehreleths,’ thus they are cursed by the very process that created them. Every day, an arutar must consume at least one corpse with HD equal to half its own, or its body begins to break down. Every day, that an arutar does not consume a suitable corpse, it takes 1d6 points of Constitution drain as its body begins to liquefy. This Constitution drain can only be restored when the arutar begins feeding again and then it heals at the rate of 1 point per day of regular feeding.
An arutar afflicted by the curse can only take a single move or standard action each round. Its body is constantly wracked in pain and it takes a –2 penalty on all attack and damage rolls.

Devour (Su): Arutar’s gain advance in HD by devouring the flesh of the recently dead. Whenever an arutar devours three corpses of creatures with HD equal to or greater than its own, it gains an additional Hit Dice, its attack bonus and saves improve as normal for an outsider of its Hit Dice, and it gains skill points and feats normally as well. Also, it increases the arutar’s Strength, Constitution, Intelligence, spell resistance, and natural armor by +1. Arutar’s are not picky when they devour corpses, however only corpses that have been dead for 10 minutes or less give the arutar any bonuses. Feeding on a corpse requires a full-round action.

When an arutar reaches 12 Hit Dice it immediately begins a transformation that will turn it into a nasfaru. The arutar will enclose itself in a membranous cocoon, which takes a full-round action. In this form, the arutar gains a +10 bonus to its spell resistance, natural armor, and Constitution. It also gains Regeneration 5, and it only takes normal damage from good-aligned weapons, lawful-aligned weapons, or spells with the good or lawful descriptor. After 24 hours, the nasfaru has completed its transformation and it will emerge from its cocoon fully healed. Once it has emerged from its cocoon, it automatically becomes uncontrolled, usually attempting to exact revenge against the caster. Smart wizards usually try to destroy arutars that are on the cusp of their transformation.

Dissolving Touch (Su): An arutar’s slam attack causes the flesh to liquefy and slough off of its opponent’s body. Any creature hit by an arutar’s slam must succeed at a Fort save (DC 16) or take 1d4 points of Constitution damage. A creature that is reduced to 0 Con, turns into a pulpy, liquid mass as all of its flesh, bones, and organs are liquefied. The save DC is Constitution based.