2-6 x Bolt, Stun; 2-6 x Pulse, Disease; Immune to all physical damage. Vulnerable to all elemental damage. Spell resistance. Immune to Fear, Critical Attacks, Sneak Attacks, Mind-Affecting Spells, Disease, Death Magic, Knockdown, Paralysis, Poison, Level/Ability Drain.
'Usually appearing in a crowned, glowing, gaseous from, Drae'khalhu are remants of souls who perished while attempting certain kinds of interplanar travel. There are not undead per se, but Drae'khalhu are formidable monsters in that they are completely immune to physical damage.'