Temple of Sethraliss Guide: Midnight Season 2 Mythic+ Bosses, Route

Quick summary

• What it is: a four-boss Battle for Azeroth dungeon in northern Vol'dun, back in the Midnight Season 2 Mythic+ pool. The bosses are Adderis and Aspix, Merektha, Galvazzt, and the Avatar of Sethraliss (Wowhead).
• Timer: 33:00 (Wowhead); TheWoWDB lists 32:00.
• Galvazzt is the key check: someone must stand between every Lightning Spire and the boss. If he reaches full energy, Method says the result "likely leads to a wipe."
• The last boss is a healing fight: kill the Essence Defilers, soak the Corrupted Lifeforce orbs, then protect your healer from fixating adds while they heal the Avatar (Method, TheWoWDB).
• Blizzard reworked the Avatar on August 18, cutting its passive healing and giving more time to soak orbs. Guides and videos from before that date show the old fight.

Get there and plan the run

Fact	Value	Source
Location	Northern Vol'dun, entrance near 51.9, 26.7	Wowhead
Fast travel	Timeways portal in Silvermoon City (42.4, 58.3), the rightmost portal	Wowhead
Teleport	Path of the Sacred Temple, after timing a +10	Wowhead, Icy Veins
Level	90	Wowhead
Difficulties	Heroic, Mythic, Mythic+	Wowhead
Bosses	4, in a fixed order	Wowhead, TheWoWDB
Timer	33:00 (TheWoWDB: 32:00)	Wowhead

The one gate is the Eyes of Sethraliss event before the Avatar. New to keys? See our first key checklist.

Clear the opening trash

Mob	Key ability	What to do	Source
Storm Adept	Lightning Bolt	Kick it	Method, TheWoWDB
Sandswept Hunter	Arrow Barrage (channel), Sandburst Arrow	Stun or CC the channel; dodge the circle	Method, Icy Veins
Barbed Krolusk	Serrated Charge	Bleed cleanse or defensive	Method, Icy Veins
Shrouded Fang	Starts in stealth; Poisoned Cheap Shot; Slither Strike	Kick the Cheap Shot or poison-dispel the stun	Method
Sandfury Stonefist	Ground Pound, Sunder Slam	CC-immune; tank defensive; respect the knockback	Method, TheWoWDB

Method says Shrouded Fangs usually sit near a neutral Rogue Krolusk. On September 22, Blizzard fixed a bug that let the Fang's Slither Strike go off while it was crowd-controlled, so stuns now stop it properly.

Beat Adderis and Aspix

• Storm Blessed: one twin is immune at a time. It starts on Aspix and passes to the other when one twin reaches 40% health (Method, TheWoWDB). Hit the twin without the shield.
• Gale Force: a line on every player, then a strong knockback. Spread loosely and back up to a wall if you can't cancel knockbacks (Method). Wowhead warns that a group soak follows right after.
• Thunder and Lightning: that soak. Collapse into melee so the whole group splits the damage (Method, Icy Veins).
• Tempest Winds: 2 players drop wind puddles. Move out of the group first.
• Overload: Adderis's melee hits get dangerous; tanks use a defensive.
• Frenzy: after Adderis dies, Aspix casts Gust, Gale Force, and Tempest Winds more often. TheWoWDB suggests saving a group cooldown for it.

Cross the bridge and beat Merektha

The bridge after the twins is "full of swirlies" to dodge (Method). Then the Merektha trash:

Mob	Key ability	What to do	Source
Sand-Sworn Rider	Scouring Sand, Swarming Krolusks	CC-immune; kill it fast; stay close to dodge the frontal	Icy Veins, Method
Poisonous Viper	Cytotoxin	Poison dispel	Method, Icy Veins
Lightning Serpent	Serpent's Stormcall	Tank defensive; move away	Method, Icy Veins
Brood Tender	Venom Bolt	Spare kicks	TheWoWDB
Faithless Subjugator	Addle Mind (disorient)	Kick or curse-dispel every cast	Method, Icy Veins

On August 25, Blizzard replaced one Faithless Subjugator with a Lightning Serpent and changed the forces count so routes stay the same. Swarming Krolusks also wait longer after spawning before they attack.

Merektha:

1. Lightning Bite: a defensive for every cast.
2. A Knot of Snakes: wraps 2 players. Wowhead says a blue arrow shows who will be stunned, so group up and use AoE CC. Then cleave the snakes.
3. Thunder Spit: drop your circles at the edge of the room. Since August 18, the Lingering Storm debuffs no longer stack on top of each other (Blizzard).
4. Serpentstorm: group damage that can knock you into pools. Healers plan a cooldown (Method, Icy Veins).
5. Hatch and Burrow: at full energy she summons 3 Toxic Vipers and a Storm Serpent, then stays underground until they die. Dodge her charges, which stun. Kick the vipers' Poison Spit. Park the Storm Serpent near old pools or the room's edge, because it leaves a new pool (Method, TheWoWDB).

Beat Galvazzt

First comes a Loose Spark gauntlet: lightning orbs spiral across the hall, and they stun. Dodge through and kill the nearby Spark Channeler, which stops more orbs from spawning (Method, TheWoWDB).

Mob	Key ability	What to do	Source
Agitated Nimbus	Accumulate Charge, Release Charge	Purge the stacks; defensive for the release	Method, Icy Veins
Imbued Stormcaller	Imbued Conduction, Lightning Bolt	Dispel every Conduction; kick the bolt	Method, TheWoWDB
Static Anomaly	Spark Step	Spread out loosely	Method, Icy Veins

Galvazzt:

• Lightning Spires: they spawn in sets of 3. Method says a non-tank player "quickly steps between them and the boss" to stop him gaining energy. Rotate defensives and healer cooldowns, because the beams deal steady damage.
• Consume Charge: cast at full energy. Method says it "likely leads to a wipe"; TheWoWDB says to "assume a wipe."
• Induction: group damage that leaves a puddle. The tank moves the boss to make the next spires easier to reach (Method). Icy Veins suggests a health potion if you're low.

On August 27, Blizzard fixed a bug where the Voidbound Emissary from the Xal'atath's Bargain affix could make Galvazzt despawn. That affix is described in our Season 2 Mythic+ guide.

Open the Eyes of Sethraliss

After a second Loose Spark gauntlet, you reach a big room. To open the way, a player clicks each of the two Eyes of Sethraliss. They take ticking damage while its bar fills, and new mobs spawn (Method, TheWoWDB).

Mob	What it does	Answer	Source
Faithless Conscript	Hits the tank; worth no forces	Leave them	Method, TheWoWDB
Temple Disruptor	Essence Disruption channel into the nearest Eye	Kick or CC it	Method, Wowhead
Orb Watcher	Attacks the Eye area	Tank it away from the Eye	Icy Veins, TheWoWDB
Twisted Hexxer	Flame Shock, Latent Hex	Kick the shock; drop the hex at the room's edge	Method

Wowhead says Temple Disruptors only channel while an Eye is active, so CC them and finish the orb.

Win the Avatar of Sethraliss healing fight

This is a healing fight. Your healer can't heal the Avatar while the Essence Defilers' Defiling Taint is on her (Wowhead). TheWoWDB says not to waste mana until they're dead.

1. Kill the Essence Defilers first. Since August 18, Defiling Taint shows on the Avatar's unit frame (Blizzard).
2. Corrupted Guardian: use a defensive if it targets you with Vile Charge. Tanks need a defensive for Tainted Strike. Icy Veins says to park it in a corner. When it dies, it hits everyone within 20 yards and leaves 3 Corrupted Lifeforce soaks that explode after 6 seconds (Method).
3. Soak the orbs: each soak applies Corruption, a physical damage vulnerability. DPS players or a tank with a defensive ready should take them.
4. Heal the Avatar: once the Defilers are down, the healer heals her while waves of Faithless Tormentors spawn for about 30 seconds and fixate a random player, preferring the healer. Their melee hits stack Shadowlash. Kite them to the group to be stunned and cleaved. Each one that dies heals the Avatar for about 0.7% (Method, TheWoWDB).

August 18 rework: soak time is 6 seconds (was 4.5); Corruption's vulnerability is 250% (was 300%), but its damage over time is 33% higher; Tainted Strike's damage over time is halved and capped at 2 stacks; the passive Cleansed Lifeforce aura caps at 3 stacks and ticks every 3 seconds (was 2). Blizzard's notes say the goal was to make "player healing more impactful." On August 20, Blizzard fixed the progress bar reaching 100% while the Avatar was at 99%.

Healers wondering which spec handles this best can check our healer and tank tier list, which is written for raids.

Compare the routes

Route	Key choice	Strength	Source
Method pug route	Full clear	MDT import https://wago.io/1pqM1h0ez	Method
Wowhead tips	Pull "a decent amount of extra trash"	Margin for missed mobs	Wowhead

Assign kicks

Cast	Mob	Priority	Source
Lightning Bolt	Storm Adept, Imbued Stormcaller	Every cast	Method, TheWoWDB
Poisoned Cheap Shot	Shrouded Fang	Every cast (or poison dispel)	Method
Addle Mind	Faithless Subjugator	Every cast (or curse dispel)	Method, Icy Veins
Venom Bolt	Brood Tender	Spare kicks	TheWoWDB
Poison Spit	Toxic Viper	Every cast	Method
Essence Disruption	Temple Disruptor	Kick or CC	Method
Flame Shock	Twisted Hexxer	Rotation	Method, TheWoWDB

For setting up a rotation, see our interrupt coordination guide.

Know the hotfixes and loot

Date	Change	Source
Aug 18	Avatar rework (above); Tormentor fixate visual smaller and melee range fixed; Lingering Storm no longer overlaps	Blizzard
Aug 19	Spark Channeler can no longer be turned unexpectedly; Static Anomalies now count toward forces (routing unchanged)	Blizzard
Aug 20	Avatar progress bar fix	Blizzard
Aug 25	One Faithless Subjugator replaced with a Lightning Serpent; forces adjusted; Swarming Krolusks wait longer	Blizzard
Aug 27	The Voidbound Emissary affix mob could despawn Galvazzt; fixed	Blizzard
Sep 1	Shrouded Fang's Slither Strike no longer casts while crowd-controlled	Blizzard

Trinkets (Wowhead): Merektha's Fang (Merektha), Tiny Electromental in a Jar (Galvazzt), and Sethraliss' Defiled Relic (Avatar). End-of-run item levels by key are in our Season 2 Mythic+ guide.

Achievements (Icy Veins): a Mythic kill of the Avatar, and Keystone Hero: Temple of Sethraliss for timing a +10, which gives the teleport. Track them on our achievements page.

Avoid the common mistakes

• Hitting the shielded twin. Damage into Storm Blessed is wasted (TheWoWDB).
• Getting knocked off by Gale Force and missing the soak that follows.
• Leaving a spire unsoaked. One full-energy Galvazzt can end the key.
• Fighting the Faithless Conscripts. They're worth no forces.
• Healing the Avatar too early. Kill the Defilers first.
• Letting Tormentors reach the healer. Stun and cleave them as they come.

Run it on alts or after a break

• Returning for 12.1.5: the Avatar fight changed on August 18, and the Subjugator swap came on August 25. Watch footage from after those dates. From October 20, +10 runs drop Venomstones (Blizzard, via our Season 2 Mythic+ guide).
• Alts: each character times its own +10 for the teleport (Icy Veins). Healers on alts should practice the Avatar on lower keys first.
• Pushing: see our push guide. Our Kings' Rest guide covers another legacy dungeon in the pool.

Want a hand with this?

If you would rather not grind this part yourself, World of Warcraft dungeon and Mythic+ services are listed on FullBoosts. Read Blizzard's End User License Agreement before you buy any service from anyone, FullBoosts included — a marketplace listing isn't publisher permission.

FAQ

What is the Temple of Sethraliss timer? TheWoWDB lists 32 minutes.

Which twin do I attack on Adderis and Aspix? The one without Storm Blessed. It starts on Aspix and moves at 40% health (Method).

How do I stop Galvazzt from wiping us? Stand between each Lightning Spire and the boss so he doesn't gain energy.

How do I open the way to the Avatar? Click both Eyes of Sethraliss and protect them from the Temple Disruptors (Method, Wowhead).

When should the healer heal the Avatar? After the Essence Defilers die and Defiling Taint is gone (Wowhead, TheWoWDB).

Who should soak Corrupted Lifeforce? DPS players, or a tank with a defensive ready.

Is there a teleport? Yes. Time a +10 for Path of the Sacred Temple (Wowhead).