Arraetrikos

Arraetrikos is the raid boss of the Shroud, is encountered in phase 4 and phase 5 of the raid.

Arraetrikos
 * CR ?/?/? on normal/hard/elite
 * Lawful Evil Pit Fiend (Lawful Evil Outsider)
 * hp ??
 * AC ??
 * Light Fortification (25%)
 * DR 15/Silver+Good
 * Immunity to fire and posion
 * Resistance to acid and cold 10 (per D20 SRD)

Melee
 * BAB: somewhere around 57-60 is suspected.
 * 100-ish melee damage per hit.
 * Pit Fiends' melee attacks also have posion and disease effect as following:
 * Posion Injury: Fortitude DC 32, initially 1d6 Con damage, secondary death.
 * Devil Chills disease: Fortitude DC 32, 1d4 Str damage.
 * Some sort of True Seeing ability (it was reported Blur didn't stop a single attack)

Spells Known
 * Delayed Blast Fireball - 200+ damage