This page covers healer-focused strategies for De Other Side dungeon in Shadowlands. While it's tailored for healers, other roles may also find the information useful. If you have any suggestions or feedback, you can leave a comment below or tweet @PrestonDvorak.

This guide has been updated and maintained based on my own experiences as well as Dungeon Journal and combat log information. I'll continue to update it as-needed.

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 Bosses

Below are guides for the bosses in De Other Side, including their abilities, healer notes, and addon settings.

Hakkar the Soulflayer

• The tank will be dealing with Piercing Bard.
• Blood Barrier deals moderate damage to all players and Sons of Hakkar, granting Hakkar a damage absorption shield equal to the damage dealt and making him immune to interrupts while the shield is active.
  • Avoid the impact locations of Blood Barrage and interrupt the channeled cast as soon as the damage absorption shield is depleted.
• Stay at least 7-yards away from other players to prevent the spread of Corrupted Blood.
• Son of Hakkar will periodically join the encounter.
  • Son of Hakkar
    • Deal steadily increasing damage to all players with Blood Nova.
    • Upon death, avoid the Spilled Essence pool.
      • The pool gradually shrinks while healing the Son of Hakkar that spawned it. The Son of Hakkar will become active again at full health.
        • On Mythic, the pool no longer shrinks.
    • On Mythic, fixate on random players with Zealous.

 Healing Notes

• Use cooldowns as-needed if Corrupted Blood gets out of hand.

 Debuffs to Track

• Major: Corrupted Blood
• Minor: Zealous

 Addons

• Useful addons will be added as they're available.

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The Manastorms

During this encounter, players will alternate between fighting a Manastorm in the arena while the other assaults from afar.

Stage One - Millhouse's Magics

During this stage, Millhouse is in the arena with Millificent on the sidelines.

• Millhouse Manastorm
  • Interrupt Frostbolt to prevent the damage dealt.
  • Intercept the Power Overwhelming beam coming from the Power Crystal to Millhouse.
    • The player intercepting the beam take steadily increasing damage over time while gaining a stacking damage dealt increase. Try to let your DPS stand in the beam unless it's an emergency.
    • Each second the beam hits Millhouse, Overwhelming Power! deals light damage to all players and grants him a stacking damage dealt buff.
  • On Mythic, Diabolical Dooooooom! deals critical damage to all players over 15-seconds.
    • To interrupt this, Millhouse should be stunned with the Echo Finger Laser X-treme beam, detailed below.
• Millificent Manastorm
  • Targets random players with Throw Buzz-Saw, dealing moderate damage and applying a stack of Bleeding, dealing further damage over time.
  • On Mythic, when targeted by Echo Finger Laser X-treme, kite the beam over Millhouse to stun him with Eruption, interrupting Diabolical Dooooooom!.

Stage Two - Millificent's Gadgets

During this stage, Millificent is in the arena with Millhouse on the sidelines.

• Millificent Manastorm
  • The tank will be dealing with Buzz-Saw and stacks of Bleeding.
  • Dismantle Experimental Squirrel Bombs to prevent the moderate damage dealt to all players and to avoid spawning Mechanical Bomb Squirrels which deal additional light damage to random players.
  • On Mythic, Aerial Rocket Chicken Barrage deals light damage to all players.
• Millhouse Manastorm
  • Targets random players with Frostbolt.
  • On Mythic, when targeted by Shadowfury, move within 8-yards of Millificent to stun her.

 Healing Notes

• The player(s) absorbing Power Overwhelming may need an external defensive cooldown to survive the damage.
• Use cooldowns as-needed if Experimental Squirrel Bombs aren't dismantled or if Bleeding stacks get too high.

 Debuffs to Track

• Major: Power Overwhelming
• Minor: Bleeding

 Addons

• Useful addons will be added as they're available.

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Dealer Xy'exa

• Avoid the locations of Displacement Traps.
  • Hitting a trap deals light damage to all players within 10-yards and teleports the triggering player 25-yards into the air.
• Just before Explosive Contrivance, run over a Displacement Trap to be teleported into the air to avoid the initial critical damage.
  • This ability deals additional light damage over time for 1-minute.
• Displaced Blastwave deals moderate damage to all players.

 Healing Notes

• Use cooldowns as-needed to make sure players have enough health to survive triggering a Displacement Trap.

 Debuffs to Track

• There are no particular debuffs to track.

 Addons

• Useful addons will be added as they're available.

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Mueh'zala

During this encounter, players will be alternative between the two stages as Mueh'zala leads them through De Other Side.

Stage One - The Master of Death

• The tank will be dealing with Soulcrusher, which deals heavy damage over time from Crushed Soul.
• Dispel Cosmic Artifice (magic) and avoid the Cosmic Collapse left behind.
  • If this expires instead of being dispelled, Unbound Cosmos deals moderate damage to all players.
• Avoid the line of Master of Death. Being hit deals damage over time.
• When Shatter Reality is cast, use a Deathgate to escape to safety.
• If no players are within melee range, Crush deals heavy damage to all players.
  • Additionally, any players not on the same platform as Mueh'zala will have Stellar Clouds repeatedly spawned on them.

Stage Two - Shattered Reality

• Players have 25-seconds to interact with a Mueh'zala's Primeval Grasp totem before Coalescing pulls them back to reality.
  • Each totem is guarded by a Shattered Visage.
    • Shattered Visage
      • Continue to dispel Cosmic Artifice (magic) just as in stage one.
      • When Shattered Dominion is cast, stay at least 50-yards away from the center of the platform.
  • Once the Shattered Visage is killed, interacting with a totem triggers Mojo Infusion.
    • Deals 20% of Mueh'zala's health as damage with Bwonsamdi's Fury.
    • Grants players a stack of Bwonsamdi's Fervor, increasing haste and movement speed.

 Healing Notes

• Healer notes will be added once I've seen the fight.

 Debuffs to Track

• Major: Crushed Soul, Cosmic Artifice (dispel, magic)
• Minor: Master of Death

 Addons

• Useful addons will be added as they're available.

 Trash Mobs

Below are notes for the trash mobs in De Other Side.  The trash below is ordered as if you're completing the bosses in the order they're listed above.

• Trash information will be added as soon as possible.

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 Trash Debuffs to Track

• Major: 
• Minor:
• Enrages to Dispel:
• Buffs to Purge:

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 Trash Addons

• Useful addons will be added as they're available.

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 Mythic+ Notes

In this section you'll find notes about certain interactions bosses and trash mobs have with the Mythic+ difficulty increase or certain affixes that make them more troublesome than normal.

• Mythic+ notes will be added as soon as possible.

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