Temple of Sethraliss M+ Guide

Temple of Sethraliss is a four-boss snake-and-venom dungeon in northern Vol'dun. Returning for Midnight Season 2, it features lightning soak management on Galvazzt, burrow add control on Merektha, and a healing puzzle on Avatar of Sethraliss with Corrupted Lifeforce soaks and Faithless Tormentors.

32:00Battle for Azeroth12.1

Route and gates

The route is linear through the temple with gate opens after each boss — no skips available.
Bring multiple interrupts; nearly every trash pack has a high-priority caster.
The 33-minute timer allows moderate trash pacing, but Merektha and Avatar are time sinks.
CC Faithless Tickers and kill Krolusk Hatchlings before Hatch completes.
Save healer mana for Avatar of Sethraliss — final boss is a healing throughput check.

Trash that ends keys

Interrupt Faithless Lightning Warden Lightning Bolt and Chain Lightning — both required.
Kill Krolusk Hatchlings before they complete Hatch — spawned krolusks add significant damage.
Dispel Imbued Conduction before stun on expiration from Imbued Stormcallers.
Kill Loose Spark Channeler in gauntlets to stop stunning orb spawns.
Interrupt Temple Disruptor Essence Disruption on Eye channelers in Avatar trash.

What to kick

Always kick

Miss one and someone dies.

Lightning Bolt
Faithless Lightning Warden
Heavy single-target damage — assign per pack.
Chain Lightning
Faithless Lightning Warden
Raid-wide lightning damage — never let this complete.

Kick when you can

Costs healing or time if it goes off.

Venomous Spit
Venomous Ophidian
Stacking poison on the group — interrupt or kill fast.
Revitalizing Mist
Faithless Acolyte
Heals trash packs — interrupt to shorten pulls.

Spare kicks

Only when nothing above is casting.

Flame Shock
Twisted Hexxer
Boss and Avatar trash — assign rotation.

Adderis and Aspix

Twin snake bosses with Storm Blessed immunity on Aspix. Gale Force knockback into Thunder And Lightning soak, Tempest Winds puddle drops, and Aspix Frenzy after Adderis dies accelerate all mechanics.

The fight, in order

Pull & track immunity
Track Storm Blessed on Aspix. Focus spot healing on Gust targets.
Track which snake has Storm Blessed — do not waste damage on the immune boss. Kill Adderis first; immunity passes at 40%. Healers spot heal Gust targets immediately; frequency doubles during Aspix Frenzy after Adderis dies.
Everyone
Gale Force
Loosely spread for lines. Use walls to stop knockback if needed.
Loosely spread for Gale Force lines without cleaving allies. Use walls to stop knockback if you cannot cancel it. Pre-call 'stack for thunder' before Gale Force — Thunder And Lightning soak comes immediately after knockback.
Everyone
Thunder soak
Collapse in melee after knockback for Thunder And Lightning split.
Immediately after Gale Force knockback, collapse in melee to soak Thunder And Lightning — split the damage across the group. Missing the soak after knockback deals lethal damage to individuals. Tank runs back to melee for soak every cycle.
Everyone
Tempest Winds
Two players drop puddles away from group and lightning trails.
Tempest Winds players move out of the group and drop wind puddles at the edge of the arena. Do not drop puddles in paths used for Gale Force recovery or through the group center — floor denial compounds every cycle.
Everyone
Aspix Frenzy & win
Kill Adderis first. Position for faster mechanics during Aspix Frenzy.
Leave floor space at edges for Tempest Winds before Adderis dies. During Aspix Frenzy, Gust, Gale Force, and Tempest Winds happen more frequently — burn Aspix with cooldowns. Position for faster mechanic cadence; near-continuous movement damage means paced healer CDs.
Everyone

Do this

Track Storm Blessed immunity — starts on Aspix, passes between bosses at 40% health.
Healers focus spot healing on Gust targets.
Gale Force: lines on each player — loosely spread, use walls to stop knockback if you cannot cancel it.
After Gale Force knockback, collapse in melee immediately for Thunder And Lightning soak — split damage.
Tempest Winds on two players: move out of group and drop puddles out of the way.
After Adderis dies, Aspix Frenzies — Gust, Gale Force, and Tempest Winds happen more frequently.

Not this

Missing Thunder And Lightning soak after knockback — individuals take lethal damage.
Gale Force knockback launching players into Tempest Winds puddles.
Ignoring Storm Blessed — damaging immune snake wastes DPS and extends Frenzy overlap.
Stacked Tempest Winds puddles in the group center — floor denial compounds.

Mechanics

Boss
Add
Tank
Healer
Damage
Get out
Stand here

Swap with immunity

The immune snake takes no damage: hit the other one.
Kill Adderis first.
At 40% the immunity passes across: swap targets with it.

Storm Blessed

Track which snake has Storm Blessed — do not waste damage on the immune boss. Kill Adderis first; immunity passes at 40%. Swap target when immunity transfers.

Immunity buff starting on Aspix; passes to the other boss at 40% health.

Damage

Spread, then stack

A line through each player knocks them back: spread loosely.
Use a wall to stop the knockback if you cannot cancel it.
Then collapse into melee at once to share Thunder And Lightning.

Gale Force / Thunder And Lightning

Loosely spread for Gale Force lines without cleaving. Use walls to stop knockback if you cannot cancel it. Immediately after knockback, collapse in melee to soak Thunder And Lightning — split the damage.

Gale Force puts a line on each player with strong knockback, then Thunder And Lightning requires a group soak.

Call it: Soak is right after knockback — pre-call 'stack for thunder' before Gale Force.

Everyone

Puddles to edge

Tempest Winds debuffs two players.
They leave the group and drop the puddles at the arena edge.
Keep them off the paths used after Gale Force.

Tempest Winds

Tempest Winds players move out of the group and drop puddles at the edge of the arena. Do not drop puddles in paths used for Gale Force recovery.

Two players debuffed; drop wind puddles on expiration.

Everyone

Spot heal

Gust hits a random player.
Healer finds the target and spot heals at once.
During Aspix Frenzy it comes more often: pre-heal.

Gust

Healers identify Gust targets immediately and spot heal. During Aspix Frenzy, Gust frequency increases — pre-hot when Frenzy starts.

Random target damage that needs active spot healing.

Healer

Burn Aspix

When Adderis dies, Aspix frenzies.
Gust, Gale Force and Tempest Winds all come faster.
Keep the edges clear for puddles and burn Aspix with cooldowns.

Aspix Frenzy

Position for faster mechanic cadence before Adderis dies — leave floor space at edges for Tempest Winds. Burn Aspix during Frenzy with cooldowns.

After Adderis dies, Aspix enrages — faster Gust, Gale Force, and Tempest Winds.

Everyone

Defensive on Overload

Adderis gains Overload and hits harder.
Tank uses a defensive while it is up.
Call it so the healer ramps tank healing.

Overload (Adderis)

Tank uses defensive when Adderis has Overload. Call Overload so healers ramp tank healing.

Adderis gains Overload buff increasing damage — tank needs defensives.

Tank

Your job

Tank

Defensive when Adderis has Overload buff.
Keep both snakes in cleave range early — kill Adderis first per immunity tracking.
After Gale Force, run back to melee for Thunder soak immediately.
During Aspix Frenzy, pre-position so Tempest Winds puddles have edge space.

Healer

Spot heal Gust targets every cast — frequency doubles during Frenzy.
Ramp before Gale Force into Thunder soak sequence.
Pre-hot Thunder soak targets after knockback.
During Frenzy, expect near-continuous movement damage — pace CDs.

Damage

Kill Adderis first; track Storm Blessed — do not hit immune snake.
Loosely spread Gale Force lines; stack in melee right after for Thunder soak.
Drop Tempest Winds puddles at arena edge, not through the group.
Burn Aspix during Frenzy — faster mechanics mean less idle time.

From the Encounter JournalBlizzard's own notes and ability list for Adderis and Aspix

Adderis is a fearsome warrior, unleashing deadly electric attacks like his twofold strike Thunder and Lightning. Aspix is a relentless caster, creating powerful winds that damage and disrupt. Adderis and Aspix alternate being Storm Blessed, which grants them immunity to damage.

Damage

Storm Blessed alternates between the sethrak duo which grants damage immunity.
Thunder and Lightning is a two part attack, the first of which inflicts damage divided evenly between players hit.
Gale Force violently pushes players backwards.

Healers

Tempest Winds inflict damage to players upon creation.
Thunder and Lightning is a two part attack, the first of which inflicts damage divided evenly between players hit.
Gale Force violently pushes players backwards.

Tanks

Overload causes Adderis to rapidly inflict additional Nature damage with each attack.
Thunder and Lightning is a two part attack, the first of which inflicts damage divided evenly between players hit.
Gale Force violently pushes players backwards.

Storm Blessed
Frenzy
Adderis
- Thunder and Lightning
- Overload
Aspix

From Blizzard's Encounter Journal (game data API). Ability tooltips via Wowhead.

Route and gates

The route is linear through the temple with gate opens after each boss — no skips available.

Bring multiple interrupts; nearly every trash pack has a high-priority caster.

The 33-minute timer allows moderate trash pacing, but Merektha and Avatar are time sinks.

CC Faithless Tickers and kill Krolusk Hatchlings before Hatch completes.

Save healer mana for Avatar of Sethraliss — final boss is a healing throughput check.

Trash that ends keys

Interrupt Faithless Lightning Warden Lightning Bolt and Chain Lightning — both required.

Kill Krolusk Hatchlings before they complete Hatch — spawned krolusks add significant damage.

Dispel Imbued Conduction before stun on expiration from Imbued Stormcallers.

Kill Loose Spark Channeler in gauntlets to stop stunning orb spawns.

Interrupt Temple Disruptor Essence Disruption on Eye channelers in Avatar trash.

What to kick

Always kick

Miss one and someone dies.

Lightning Bolt
Faithless Lightning Warden
Heavy single-target damage — assign per pack.
Chain Lightning
Faithless Lightning Warden
Raid-wide lightning damage — never let this complete.

Kick when you can

Costs healing or time if it goes off.

Venomous Spit
Venomous Ophidian
Stacking poison on the group — interrupt or kill fast.
Revitalizing Mist
Faithless Acolyte
Heals trash packs — interrupt to shorten pulls.

Spare kicks

Only when nothing above is casting.

Flame Shock
Twisted Hexxer
Boss and Avatar trash — assign rotation.

Route and gates

Trash that ends keys

What to kick

The fight, in order

Pull & track immunity

Gale Force

Thunder soak

Tempest Winds

Aspix Frenzy & win

Do this

Not this

Mechanics

Storm Blessed

Gale Force / Thunder And Lightning

Tempest Winds

Gust

Aspix Frenzy

Overload (Adderis)

Your job

Tank

Healer

Damage

Damage

Healers

Tanks

Route and gates

Trash that ends keys

What to kick

The fight, in order

Pull & track immunity

Gale Force

Thunder soak

Tempest Winds

Aspix Frenzy & win

Do this

Not this

Mechanics

Storm Blessed

Gale Force / Thunder And Lightning

Tempest Winds

Gust

Aspix Frenzy

Overload (Adderis)

Your job

Tank

Healer

Damage

Damage

Healers

Tanks