Bloodroot Forge
Reachmen forge full of nirncrux lava. Six bosses, ending with the Earthgore Amalgam, which splits into copies. Hard mode is on the final boss only.
- Hard mode (veteran only): read the Scroll of Glorious Battle before the Earthgore Amalgam. It disables the two arena synergies, so the fight becomes a DPS race against the lava.
- Strangler plants (trash too): they drop a strong poison AoE under you. Kill them first or step out.
- Heavy attacks here hit very hard. Several bosses and adds one-shot non-tanks. Only the tank takes heavies; everyone else dodge-rolls if targeted.
Mathgamain
Boss- Frontal heavy cone one-shots anyone but a blocking tank. Never stand in front of him. If he turns on you, dodge-roll.
- Keep taunt at all times and face him away from the group.
- Add waves at roughly 75 / 50 / 25%: range-taunt or root them, but don't spin the boss onto the group.
- Kill Strangler adds first. Don't run from adds; they chase you until dead.
- Don't overburn through thresholds or the add waves overlap.
- A big Nirnblooded beast with a slow, telegraphed heavy wind-up.
More detail
Simple fight with add waves. The only real danger is the heavy cone landing on a non-tank, usually after aggro breaks.
Caillaoife
Boss- Nirnblooded Bear add: its heavy attack one-shots non-tanks, even blocking. Tank taunts it; DPS kill it fast.
- Tree ward: don't touch the barrier edge. It knocks you down and stuns.
- At each threshold she wards up and taunt drops. Grab the adds (bear first) and pull them away from the group.
- Block her thin Blast cone (knockback).
- Kill order: Stranglers, then the Bear, then the rest. Stranglers left alive poison the room.
- While the ward is up, the boss is immune from outside and the adds are immune from inside. Get out of the ward and kill adds.
- Winter's Reach: fast cold AoEs that root a random player (often a DPS). Shield/heal them and cleanse.
- Ward: a ring of trees/roots around the boss. She teleports after it drops.
- Winter's Reach: icy ground AoEs chasing one player.
More detail
At three health thresholds she summons a warded grove and adds. Kill the adds to drop the ward, then she becomes attackable again.
- Thresholds: Fextralife says 75/50/25%; Xynode says 75/50/30%.
Stoneheart
Boss- Stone Atronachs: kill them fast. Left alive they put knockback/damage AoEs under every player.
- Many small fast AoEs (squat cast): sidestep side to side, don't sprint in a line. Each hit is a big chunk of HP.
- He teleports across the arena. Re-taunt immediately and face him away.
- Move off the fire circles his light attacks leave under you.
- Range-taunt the atronachs to the boss.
- Switch to Stone Atronachs as soon as they spawn.
- Below 25%: vines root players. Dodge-roll out early; save resources and AoE ults for this execute.
- Before teleporting he raises a hand and fires projectiles at an atronach.
Galchobhar
Boss- Big slam (fire wave): he slams his weapon and fire spreads across the floor. Everyone jumps onto a separate rock. Don't come back down until the fire is gone.
- Volcano: after his heavy swing a volcano forms. The tank stands on it and blocks to plug it, or the group takes heavy damage.
- Plug every volcano. Never drop taunt.
- Step out of the frontal swing and its three small fire AoEs.
- Fire Shalk targets you (flames at screen edges): run to the outer lava/rocks until the chasing AoE dissolves.
- Kill Shalks quickly. After 50%, kill each atronach immediately.
- Rocks/pads around a lava arena. Pads crumble faster with more players on them.
More detail
Small arena with stacked mechanics. Spread out on the rocks for the slam: more people on one rock breaks it faster.
Gherig Bullblood
Boss- Chains: two players get pinned with an AoE spreading under them. Interrupt the caster to free them, then move out. Nearly a one-shot if missed.
- Get out of the melee boss's big self-centered stun AoE.
Three enemies at once: Gherig plus two attendants. Kill them one at a time.
- Taunt all three and stack them, away from DPS.
- Block heavy attacks.
- Interrupt the healer attendant's casts (she heals the others).
- Stay out of the room center late in the fight; lava spreads there.
More detail
- Kill order: Fextralife says Attendant of Flame (minotaur) first, then Attendant of Blood (healer), then Gherig. Xynode says bull, then melee, then mage. Both agree the minotaur goes first.
Earthgore Amalgam
Final boss- Heavy attack hits extremely hard. Only a blocking, shielded tank survives it. Anyone else targeted dodge-rolls.
- Lava pools (Drown in Flame): stay far from them. Repeated hits fossilize you (stun) and kill.
- Ground pound: he shields up and debris falls on everyone. Dodge the falling rocks and don't stack.
- Hold every copy (up to three). Keep them out of lava; lava empowers them.
- Plan a direction to rotate the boss as lava fills the floor.
- Kill the smallest copy first, then the middle one, then the original.
- Dump AoE ults when copies spawn.
- The tank takes huge spikes from stacked heavies. Pre-shield before heavies land.
- A huge rock-and-lava creature. Copies are smaller versions of it.
- Lava pools start small and grow.
- Veteran (not HM): use the Flameslake Cauldron synergy to cool a lava pool, and the Stonefire Crucible synergy to stun him during the pound. Assign one DPS to each.
Activate: Read the Scroll of Glorious Battle before the fight (veteran only).
- Both synergies are disabled. You can't clear lava or stun the pound.
- Lava eventually covers the arena. Kill all copies before that.
- More HP.
More detail
He splits into copies that share mechanics, so lava builds up faster with more alive. Without the synergies (HM), the floor fills with lava over time, so it's a damage race.
- Split thresholds: Xynode says 80% and 50%. Other sources only say 'two copies'.
- Which synergy is on which pillar: Fextralife calls them the Blood and Flame pillars. UESP names Flameslake Cauldron (lava) and Stonefire Crucible (stun).