TheWoWDBThe Bastion of Twilight
Halfus Wyrmbreaker Guide
Halfus Wyrmbreaker in The Bastion of Twilight, quoted from the Adventure Guide. Database holds the raw abilities and the full loot table.
30-second TL;DR
Adventure Guide says
- Stages named in the Adventure Guide: Halfus Wyrmbreaker, Imprisoned Dragonkin.
Encounter phases
Adventure Guide says
- Halfus Wyrmbreaker Each week a random three of Halfus's five captured dragonkin awaken. Each awakened dragonkin empowers Halfus and his enslaved Proto-Behemoth with an ability. On Heroic difficulty, all five dragonkin awaken and empower Halfus and his enslaved Proto-Behemoth with all possible abilities.
- Imprisoned Dragonkin Halfus has imprisoned a Slate Dragon, a Nether Scion, a Storm Rider, a Time Warden, and a pack of Orphaned Emerald Whelps. They surround him on his platform, wearing bonds of servitude. If freed they will each turn on their master and weaken him, but Halfus then dominates the dragonkin and forces them to fight against the players. In Normal Difficulty three random dragonkin awaken each week, while the other two slumber. Only the awakened dragonkin may be freed.
Normal, Heroic, and Mythic
Adventure Guide says
Only sentences the Adventure Guide itself marks as a difficulty change. We do not invent extra Heroic or Mythic strategy.
- On Heroic difficulty, all five dragonkin awaken and empower Halfus and his enslaved Proto-Behemoth with all possible abilities.
Boss abilities
| Ability | Adventure Guide | Notes |
|---|---|---|
| Malevolent Strikes | This effect stacks. This ability activates when the Slate Dragon awakens. | |
| Frenzied Assault | This ability activates when the Nether Scion awakens. | |
| Shadow Nova | This ability activates when the Storm Rider awakens. | |
| Fireball Barrage | The Proto-Behemoth fires rapid volleys of fireballs at random enemy targets. This ability activates when the Time Warden awakens. | |
| Scorching Breath | This ability activates when the Orphaned Emerald Whelps awaken. | |
| Fireball | The Proto-Behemoth lobs single fireballs at the location of a random player. This ability is only active when the Time Warden is dormant. | |
| Furious Roar | When Halfus reaches 50% remaining health, he periodically emits a Furious Roar. Halfus roars three times in rapid succession. | |
| Nether Blindness | ||
| Dragon's Vengeance | This effect stacks. | |
| Atrophic Poison | This effect stacks 8 times. | |
| Stone Grip | Upon being released the Slate Dragon afflicts Halfus with a creeping paralysis, causing him to occasionally petrify for 12 sec. | |
| Cyclone Winds | ||
| Time Dilation | Upon being released the Time Warden warps the flow of time around Halfus's Proto-Behemoth, reducing the velocity of its deadly fireballs. |
Loot
Every name is a TheWoWDB item page. Hover the row for the first-party tooltip.
Book of Binding WillBook of Binding Will
Bracers of Impossible StrengthBracers of Impossible Strength
Bracers of the Bronze FlightBracers of the Bronze Flight
Chest of the Forlorn ConquerorChest of the Forlorn ProtectorChest of the Forlorn Vanquisher
Essence of the CycloneEssence of the Cyclone
Helm of the Nether ScionHelm of the Nether Scion
Legguards of the Emerald BroodLegguards of the Emerald Brood
MalevolenceMalevolence
Pauldrons of the Great EttinPauldrons of the Great Ettin
Proto-Handler's GauntletsProto-Handler's Gauntlets
Robes of the Burning AcolyteRobes of the Burning Acolyte
Storm Rider's BootsStorm Rider's Boots
Wyrmbreaker's AmuletWyrmbreaker's AmuletMounts, toys, achievements, transmog
Only rows the journal loot table or an achievement title can prove for this encounter.
Achievements
Heroic: Ascendant Council · Heroic: Cho'gall · Heroic: Halfus Wyrmbreaker · Heroic: Sinestra · The Bastion of Twilight
Entrance and instance
The Bastion of Twilight is a raid in the Adventure Guide. See the The Bastion of Twilight database page for the raw journal, map, and loot grid. This guide does not invent coordinates or a walking path.
Related bosses
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 Halfus Wyrmbreaker?
Stages named in the Adventure Guide: Halfus Wyrmbreaker, Imprisoned Dragonkin.
What does Halfus Wyrmbreaker drop?
The Adventure Guide lists 27 drops. Each name links to its TheWoWDB item page. The full table also lives on the The Bastion of Twilight database page.
Does Halfus Wyrmbreaker change on Heroic or Mythic?
Yes. The Adventure Guide adds difficulty sentences on the abilities that change; those sentences are collected in the difficulty section. We do not invent additional Heroic or Mythic strategy.
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.