It appears this boss is unable to be engaged until he is the target of a world quest
Rare Elite
Mortiferous
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He has some unique text if you're a ret paladin and bring Ashbringer to the fight:
On aggro:
The Ashbringer? Lord Balnazzar will have your head!On death:
The Ashbringer... will falll...
How do you attack, start the fight with this guy?
Details
This roster comes from the current game client's data files, so it is not a complete list of every NPC in the game - older world NPCs that are no longer in the modern client are absent.
Mortiferous Location
Mortiferous is the kill target of DANGER: Mortiferous, a Rare Elite World Quest added in Legion. The game draws the world quest marker in Azsuna at 40.3, 45.0. The closest other world-quest target on the Azsuna map is Infernal Lord (Rare), about 410 yards to the south-west. Further out: Valiyaka the Stormbringer about 580 yards north-east, Warbringer Mox'na about 590 yards south-east, and Doomlord Kazrok about 770 yards north. Nearest flight points: Illidari Stand, Azsuna (both factions, about 290 yards east); Illidari Perch, Azsuna (both factions, about 560 yards west); Azurewing Repose, Azsuna (both factions, about 920 yards north-east).
Infernal LordValiyaka the StormbringerWarbringer Mox'naDoomlord KazrokFlog the Captain-EaterInquisitor TivosCaptain Volo'renLevantusPridelord MeowlBrogozogJade DarkhavenValakar the ThirstySyphonusCalamirNormantis the DeposedCordana FelsongArcavellusFlight point: Illidari Stand, AzsunaMortiferous: DANGER: MortiferousIn-game waypoint: /way #630 40.3 45.0 Mortiferous
The pin is the world quest’s own POI point from the current retail client, projected onto the in-game map; the game keeps creature spawn points server-side. Distances are straight-line yards between client world coordinates.
Also marked on the Azsuna map
- Infernal Lord, about 410 yards south-west
- Valiyaka the Stormbringer, about 580 yards north-east
- Warbringer Mox'na, about 590 yards south-east
- Doomlord Kazrok, about 770 yards north
- Flog the Captain-Eater, about 810 yards south-east
- Inquisitor Tivos, about 850 yards west
- Captain Volo'ren, about 860 yards east
- Levantus, about 970 yards south
- Pridelord Meowl, about 1,140 yards north-east
- Brogozog, about 1,250 yards east
- Jade Darkhaven, about 1,380 yards south
- Valakar the Thirsty, about 1,610 yards north-east
- Syphonus, about 1,700 yards east
- Calamir, about 1,710 yards south
- Normantis the Deposed, about 1,710 yards north
- Cordana Felsong, about 1,770 yards south
- Arcavellus, about 1,920 yards north-east
Nearest other world quests on the Azsuna map
3D Model
First-party render from the game files. Model © Blizzard Entertainment.
Needed for Quests
Mortiferous is a kill or interact objective on 1 quest in the current build.
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Level and Map Tracking
The game data tunes Mortiferous for levels 10 to 45, Legion content.
The map marks it with vignette 1,840, which the client hides once hidden tracking quest 45516 is complete. In game, /run print(C_QuestLog.IsQuestFlaggedCompleted(45516)) prints true when that quest is flagged for your character.