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 Incredible - Estimated around 350,000/700,00/1 Million+ (Normal/Hard/Elite)
 * AC 41(normal)
 * 50% Fortification on Normal, 75% on hard/elite
 * DR 15/Silver+Good, this increases on Hard/Elite setting (Hard 30, Elite 90)
 * Immunity to fire and posion
 * Resistance to acid (10) and cold 30 (normal) roughly ~50 point on Elite
 * Evasion (hard/elite only)
 * SR 36/38/42 depending on difficulty

Melee
 * Attack Bonus: somewhere around 57-60 is suspected. (Normal) (Over +70 on Elite)
 * 60-100ish melee damage per hit. Does 2 hits per swing on some attacks on normal, on all attacks on Elite.
 * 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) DC ~28 Normal