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Shadowlands

Mortanis Guide

Mortanis in Shadowlands, quoted from the Adventure Guide. Database holds the raw abilities and the full loot table.

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30-second TL;DR

Adventure Guide says

  • Mortanis begins the battle once all of his necromancers are defeated, transforming into a powerful creature of bone.
  • His Spine Crawl deals heavy damage to enemies in a line, while Unruly Remains burst three times in ever-increasing circular areas.
  • Tanks: Dodge Spine Crawl.
  • Healers: Dodge Spine Crawl.
  • Damage dealers: Dodge Spine Crawl.

Overview

Adventure Guide says

Mortanis begins the battle once all of his necromancers are defeated, transforming into a powerful creature of bone. His Spine Crawl deals heavy damage to enemies in a line, while Unruly Remains burst three times in ever-increasing circular areas. Several of his attacks split damage between affected players, including Screaming Skull and Bone Cleave. When weakened, he will cast Lord of the Fallen, allowing him to rapidly cast area damage spells for the duration.

Tank mechanics

Adventure Guide says

Healer mechanics

Adventure Guide says

DPS mechanics

Adventure Guide says

Boss abilities

AbilityAdventure GuideNotes
Spine Crawl
Unholy Frenzy
Screaming Skull
Bone Cleave
Unruly Remains
Lord of the Fallen
Summon Skeleton
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Loot

Every name is a TheWoWDB item page. Hover the row for the first-party tooltip.

Memory of a Guile CharmMemory of FujiedaMemory of KeeferBand of the Risen BonelordBone-Cleated FootpadsBone Crushing VicegripsMortanis's RibcageShoulderblade VambracesSpine Crawler WaistcordBone Marrow HopsBrooding PoolBrutal GraspCatastrophic OriginConflux of ElementsCourageous AscensionDeep AllegianceDestructive ReverberationsDiscipline of the GroveElysian DirgeEmpowered ReleaseEndless ThirstEnfeebled MarkEssential ExtractionEvolved SwarmFae FermataFatal DecimationFestering TransfusionGift of the LichHallowed DiscernmentHarrowing PunishmentImbued ReflectionsImpenetrable GloomIncreased ScrutinyIre of the AscendedLashing ScarsLavish HarvestNecrotic BarragePiercing VerdictProliferationRepeat DecreeReverberationRighteous MightRinging ClaritySeptic ShockShattered PerceptionsSiphoned MaliceSoul EaterSoul TitheSpirit AttunementStrike with ClaritySudden FracturesThe Long SummerTumbling WavesUnnatural MaliceVeteran's ReputeWay of the FaeWithering Ground

Entrance and instance

Shadowlands is a raid in the Adventure Guide. See the Shadowlands database page for the raw journal, map, and loot grid. This guide does not invent coordinates or a walking path.

Valinor, the Light of Eons
Oranomonos the Everbranching
Nurgash Muckformed
Mor'geth, Tormentor of the Damned
Antros

Player strategy

This page quotes the Adventure Guide. It does not add player strategy such as positioning, assignments, stack or spread calls, or cooldown timings unless that sentence is already in the journal.

Questions

What does the Adventure Guide say about Mortanis?

Mortanis begins the battle once all of his necromancers are defeated, transforming into a powerful creature of bone.

How many abilities does Mortanis have?

The current datamine lists 7 named abilities on the Mortanis encounter.

What does Mortanis drop?

The Adventure Guide lists 57 drops. Each name links to its TheWoWDB item page. The full table also lives on the Shadowlands database page.

Does Mortanis change on Heroic or Mythic?

The current Adventure Guide text for this encounter does not include separate Heroic or Mythic sentences we can quote. If a later client build adds them, they appear here automatically.

Where does this guide's text come from?

Quoted Adventure Guide sections come from TheWoWDB's retail datamine (client build 12.1.0.69587, ingested 2026-09-01). Player strategy such as positioning, assignments, and cooldown timings is omitted unless that sentence is already in the journal.

Source and build

This page quotes the Adventure Guide. It does not add player strategy such as positioning, assignments, stack or spread calls, or cooldown timings unless that sentence is already in the journal. Quoted sections come from TheWoWDB Adventure Guide datamine (client build 12.1.0.69587, ingested 2026-09-01). Ability names link to first-party spell pages. When a newer retail build is ingested, this page updates with it.