FR: 65
Min Damage: 126
Max Damage: 420
CR: 110
Aggro Range: 70
Assist Range: 0
MR: 80
HP Regen: 10500
Mana Regen: 0
PR: 420
Combat HP Regen: 100
Combat Mana Regen: 0
DR: 420
Run Speed: 1.75
Attack Delay: 12
See Invis: Yes
See IVU: Yes
Sees Shroud of Stealth: No
Summon
Enrage
Flurry
Dual Wield
Magical Attack
Unslowable
Unmezzable
Uncharmable
Unstunable
Unsnarable
Unfearable
Immune to fleeing
Immune to melee except magical
Proximity Aggro
Always Calls for Help
Corpse Camper
<Doomshade> - Hits 420, Flurry, Dual Wield, Unslowable, Corpse Camper, 350k HP

In order to spawn Doomshade you’ll first need to kill 4x a Dark Master in the middle of the zone. After all 4 die shortly after you’ll see an emote:

Doomshade is on approx. 3 day respawn timer but the 4x a Dark Master spawn much more frequently (a few hours?). This means if Doomshade isn’t “up” then he won’t spawn even if you kill all the Masters.