Hunter's Grotto (1st) → The Wounding (2nd) → The Brimstone Den (3rd). Grants the Grappling Bow first so you can grab the Essence of Mysticism (+5,000 to +10,000 Max Magicka) right at the beginning of The Wounding, followed by +10,000 Max Health in Brimstone.
The Brimstone Den (1st) → Hunter's Grotto (2nd) → The Wounding (3rd). Grants Brimstone Orbs first so you can cross the lava in Hunter's Grotto to collect the Essence of Endurance (+5,000 to +10,000 Max Stamina) immediately, while keeping The Pyrelord on easiest 1st-wing health scaling.
The Wounding (1st) → The Brimstone Den (2nd) → Hunter's Grotto (3rd). Unlocks Wounding Portals first so you can immediately collect the Essence of Fortitude (+5,000 to +10,000 Max Health) in Brimstone, making the remainder of the arena significantly more forgiving.
The Magma Queen teleports, leaving behind an erupting lava geyser that targets your position with continuous flame damage. Keep moving to minimize damage taken while locating the geyser.
Defeating an Iron Atronach drops a cooling molten boulder. Activate the synergy on the rock, aim directly at the active lava geyser, and activate the ability to plug it, extinguishing the flames and temporarily stunning the boss.
Red portals spawn Scamps and Daedroths throughout the fight. Cleave the Scamps with area abilities and eliminate the Daedroths quickly to prevent persistent fire breath cones.
At 45% health, linear walls of fire sweep continuously across the arena from multiple directions. Reposition through the gaps between the flame waves to avoid taking heavy fire damage.
Mynar Metron slams his molten fists into the stone, releasing circular shockwaves. Block the initial impact or dodge roll through the expanding waves.
The boss radiates escalating flame damage across the chamber until defeated. Maintain damage shields and healing over time while burning down his health bar.
The Pyrelord raises his greatsword and surrounds himself with an orange fire shield while launching three rotating flame spouts and fireballs. Circle clockwise around him to stay between the rotating beams and avoid standing inside his melee aura.
The Pyrelord plunges his blade into the floor, flooding the entire arena platform with scalding magma. Move immediately to the circular stone platforms, the western coal pit, or strike a Brimstone Orb for lava immunity.
At 70% and 30% health, the Pyrelord summons a Fire Colossus. Prioritize and eliminate the colossus swiftly before its heavy cleaves overlap with boss mechanics.
The Pyrelord charges heavy physical strikes that inflict burning damage over time. Block the strike or dodge roll through the swing to prevent heavy damage.
The active Lurchers are completely immune to all incoming attacks without the Blessing of the Grove. Eliminate Blessed Spriggans immediately to claim the buff.
Blessed Spriggans cast a green tether attempting to steal back your Blessing. Bash or use an interrupt ability immediately to sever the channel.
Marbana, Rofsuta, and Saagranth awaken sequentially at shared health thresholds of 80%, 60%, 50%, 30%, and all three together at 15%. Dodge roll ground stomps and poison cone sprays.
Packs of Dire Wolves spawn during lurcher transitions. Cleave them down quickly before their pounce attacks can pin you.
The Leptfire Keeper teleports between six elevated stone pillars across a bottomless pit. Grapple rapidly between perches to close the distance and engage him.
The boss channels fiery barrages onto your current platform. Block the incoming damage or grapple to an adjacent pillar to escape the target area.
Rahdgarak wreathes himself in fiery orange or frosty blue energy, gaining complete invulnerability while standing on a platform of matching color. Grapple to an opposite-colored platform to lure him across and remove his damage barrier.
At 65% and 30% health, four ghostly Reach Channelers begin a 50-second ritual to ignite opposing platforms. Grapple to each platform in turn and bash or interrupt every Channeler before platforms burn permanently.
Rahdgarak leaps onto platforms with a heavy impact knockback. Block the impact and avoid standing near platform ledges.
Rahdgarak summons Moonlight and Luminous archers that drop frosty or burning ground effects. Cleave them down with area damage.
Zakuryn protects himself within an impervious barrier. Position the Flesh Abomination beside Zakuryn so its lightning ground slam hits the boss, shattering his shield.
Balance damage evenly between Zakuryn and the Flesh Abomination. If either dies first, the surviving enemy enrages, restores half their health pool, and deals doubled damage.
Portals spawn swarms of Banekin and expanding shock waves. Cleave the adds with area damage before shock circles overlap.
At 50% and 40% health, Xobutar vanishes into connected sealed chambers. Use the Wounding Portals to navigate through the corridor and reach him again.
In the secondary chamber, Xobutar summons two Vampiric Totems that heal him for over 10% maximum health per tick. Destroy both totems immediately before damaging the boss.
Iozuzzunth sweeps waves of blue cold-fire across the arena. Stay mobile and bait the flame waves into active Sentinels to damage and destroy them.
At health thresholds, Iozuzzunth gains an impervious shield while Watchers channel from upper ledges. Synergize the portal to travel upstairs, burst the Watchers down, and drop the boss's shield.
Floating eye Sentinels spawn to snare your movement and drain health. Direct Iozuzzunth's cold-fire onto them or burst them down swiftly.
Iozuzzunth rears back and slams his claws into the ground, sending forward a heavy shockwave. Block or dodge roll to avoid heavy physical damage.
Maebroogha summons a ring of linked Void Shades that constricts toward the center of the arena. Touching the tether is instantly lethal. Focus down a single Shade immediately to create a gap and escape before the ring collapses into a lethal Void Trap explosion.
At 10% health, Maebroogha channels an arena-wide lethal wipe. Grapple to one of the three floating islands, enter the Void Step portal, and burst down the Void Miniboss before Maebroogha regenerates her health.
Four Shade Colossi surround the perimeter. Avoid splashing area damage on them prematurely, and if awakened, burn them down before their heavy ground smashes overlap with the Void Tether.
Adds returning from the Void, especially Flameshapers, channel a devastating fire barrage that deals lethal damage within seconds. Bash or interrupt them immediately.
On Veteran difficulty, toxic Void Rots explode on death leaving expanding black puddles of void corruption. Kite them away from the arena center.