Arraetrikos

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

Arraetrikos 
 * CR 28/33/38 on normal/hard/elite
 * Lawful Evil Pit Fiend (Lawful Evil Outsider)
 * hp ??
 * AC 41(normal)
 * 50% Fortification
 * DR 15/Silver+Good, this increases on hard/elite setting (hard 30, elite 90?)
 * Immunity to fire and posion
 * Resistance to acid and cold 30 (normal)
 * Evasion (hard/elite only)
 * SR 36-42 depends on difficulty

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, 1d6 Str damage.
 * Some sort of True Seeing ability (it has reported Blur didn't stop single attack)

Spells Known
 * Delayed Blast Fireball: 240-260/270-290/320-360 fire damage on normal/hard/elite
 * Meteor Swarm: 4x 40-60 fire damage
 * Teleport: teleports random player into his melee range (only on phase 5)