Dungeon · 4 players · Wrothgar (Sea of Ghosts) · Harrowstorm (2020)
Icereach
VetChallengingHMHard
A frozen island keep held by the Icereach Coven. Four bosses, each backed by a witch sister, then a final fight against all four sisters and Mother Ciannait. The final boss reuses every earlier mechanic, so learn them on the way.
- Hard mode is only on the final boss: burn the witches' wicker totem before the Coven fight (veteran only).
- Bring fire damage. Frozen Stranglers (boss 2 and the final) are shielded in ice until melted by fire.
- Skeletal thralls that tether you can't be taunted. Don't run from them; bring them to the tank and kill them.
Kjarg the Tuskscraper
Boss☠ Wipe mechanic
- Enrage: he roars (fear), glows red and hits much harder. Tank kites him and don't take a hit; DPS stay out of his front.
- Frost Slam / Frost Scrape: his hammer smash and forward rake send out ice shockwaves. Only the tank goes in front.
Tank
- As Frost Atronachs form (ice crystals), drag Kjarg onto them so his slam shatters them before they finish.
- Step out of or block the hammer slam.
DPS
- Kill fully formed Frost Atronachs right away. Left alive, they start AoE-ing the whole group.
- Ice Tornado: a big swirl chases one player. Keep moving and lead it away from the group and the tank.
Healer
👁 Watch for
- A giant with a hammer. Sister Gohlla watches and summons the tornado and the crystals.
More detail
Mostly a damage sponge with a dangerous tank check. UESP says a slam on Gohlla's crystal pillar strips his enrage; Xynode describes the same crystals as forming atronachs to smash.
Not fully confirmed:
- Whether smashing a crystal also ends the enrage (UESP) or only stops the atronach (Xynode). Smash them either way.
Sister Skelga
Boss☠ Wipe mechanic
- Frozen Stranglers spawn around the edges and spit for heavy damage. Melt their ice (fire), then kill them. Top priority.
- Ice Burst: she sends four ice tornadoes outward. Don't stack, so you can step into a gap.
Tank
- She teleports to the far side often. Re-taunt and reset the group behind her.
- Dark Beam: a heavy channelled beam on you. Fextralife warns that cleansing her tether hurts.
DPS
- Fire on you (Flame Swirl): don't cleanse it. Keep away from others, then hug a frozen Strangler to melt its ice.
- Dodge-roll to break free if her ice roots you.
Healer
👁 Watch for
- A hagraven. Flame Swirl: a fire swirl that tracks you, erupts, then leaves a pool that follows you for a few seconds.
- Stranglers look like ice-encased plant bulbs on the arena edge.
More detail
Sister Hiti's fire is the tool for the Strangler mechanic. Some fire DPS also melts the ice directly.
Vearogh the Shambler
Boss☠ Wipe mechanic
- Enervating Thralls tether a player and drain Health. They can't be taunted: bring them to the group and kill or CC them. Running away kills you.
- Fire tornadoes (Flame Burst) roam the room for a long time. Avoid them.
Tank
- Hold him still, facing away. Block his hammer slam (fire damage too; stay healthy).
DPS
- Rift Wraiths come out of the corner runes at Health thresholds. Interrupt them; kill them before the boss.
Healer
👁 Watch for
- A huge flesh atronach with a torch hand and a hammer hand. Flame Stomp: a fast-growing circle under you.
- Flame Chuck: he lights his torch and throws fire forward with no telegraph.
More detail
Sister Bani throws spells from a perch during the fight. The main danger is add overlap, so clear thralls and wraiths as they show up.
Stormborn Revenant
Boss☠ Wipe mechanic
- Unending Storm (~30%): he holds his sword up and an arena-wide ice storm ticks hard. Save ultimates and heals; burn him or outlast it.
- Avalanche Strike: he vanishes and drops on a player with no AoE marker. Dodge or block, or die.
Tank
- Tank him mid-room. His uppercut is delayed; block early, it lands before the animation ends.
DPS
- Kill the Storm Atronachs fast. Low Health, but they channel lightning on the group. Three spawn at once around 40%.
- Thunderous Pursuit: a chain of small lightning circles follows you. Keep moving, in your own lane; don't run into others.
Healer
- Hold ultimate and burst heals for the Unending Storm.
👁 Watch for
- An undead Reachman with a sword. Lightning circles chain along the ground behind targets.
More detail
Sister Maefyn supports him. Most wipes come from the 30% storm; groups that dump ultimates early don't have them for it.
Not fully confirmed:
- UESP says Avalanche Strike must be dodged; Xynode says blocking is safe. If you're not the tank, dodge.
Icereach Coven
Final boss☠ Wipe mechanic
- When a sister hits 0, all four shield up and channel damage on the group. Split up and interrupt each sister.
- Execute (~20%): Mother Ciannait appears in the center with a growing dark orb. Kill her fast; dump ultimates here.
Tank
- Taunt the active sister at all times. Their heavy attacks one-shot non-tanks.
DPS
- One sister is open at a time: first lap goes clockwise from the left, then the order is random. Watch which one loses her shield.
- Fire on you: melt Stranglers if Hiti is active. Otherwise you can cleanse it.
Healer
- Constant group damage plus spikes. Each downed sister means a channel, so pre-heal.
👁 Watch for
- Four witches around the room, three in shields. The exposed one has no bubble.
- Mechanics from earlier bosses come back. Ice tornado, fire swirl, lightning chains, undead thralls.
Hard mode · veteran only
Activate: Veteran only. Burn the witches' wicker totem before engaging the Coven.
- Gohlla summons Kjarg's giant, with the same slams and enrage (tank kites). Kill him before the witch.
- Hiti summons frozen Stranglers in pairs. Taunt them fast, melt and kill. A second, untelegraphed wave can follow if she lives too long.
- Bani summons pairs of Rift Wraiths, which raise more undead. Clear them first.
- Maefyn summons the Stormborn Revenant, with the leap and lightning. Kill him before the witch.
- More HP and damage. Rule: kill each sister's summons, then the sister, so they don't overlap.
More detail
Each sister that hits 0 takes 10% off the shared Health bar. Mother Ciannait has little Health and takes heavy damage from Hiti's fire.
Not fully confirmed:
- Where exactly the wicker totem stands. Achievement text only says 'burn the witches' wicker totem'; none of my sources give its location.
- The ~20% execute threshold and the clockwise first lap come from Xynode only. Fextralife gives the order as Gohlla, Hiti, Bani, Maefyn, which matches.