Caustic Wraith
CREATURE 9Lifesense allows a monster to sense the vital essence of living and undead creatures within the listed range. The sense can distinguish between the vitality energy animating living creatures and the void energy animating undead creatures, much as sight distinguishes colors.
10 feet. Acidic vapor surrounds the caustic wraith, making other creatures' bodies feel raw and especially sensitive to pain. A creature that begins in the area must succeed at a DC 28 Will save or gain weakness 3 to all damage for 1 round (weakness 5 on a critical failure).
Effect: Aggravating Aura
A creature with void healing draws health from void energy rather than vitality energy. It is damaged by vitality damage and is not healed by vitality healing effects. It does not take void damage, and it is healed by void effects that heal undead.
The caustic wraith reaches into the body of a creature within 10 feet, melting its organs and inflicting pain. The target takes 4d8 acid damage with a DC 28 basic Fortitude save. On a critical failure, the creature is also Sickened 2.
When the caustic wraith damages a living creature with its caustic touch Strike, the wraith gains 10 temporary Hit Points, and the target must succeed at a DC 28 Fortitude save or become Drained 1. Further damage dealt by the caustic wraith increases the drained condition value by 1 on a failed save, to a maximum of drained 4.
Effect: Drain Life
A living humanoid slain by a caustic wraith rises as a wraith spawn after 1d4 rounds. This wraith spawn is under the command of the wraith that killed it. It doesn't have drain life or wraith spawn and becomes Clumsy 2. After 24 hours, the wraith spawn dissipates and is destroyed.