Dimensius Raid Guide in Manaforge Omega

Last updated on Aug 18, 2025 at 12:00 by Panthea

Dimensius is the 8th boss encounter in the Manaforge Omega raid in The War Within.

On this page you will find a both a short and a full written guide for this encounter, with everything you need to know to take the boss on in Normal, Heroic, or Mythic difficulty.

1.

Dimensius Raid Guide

Mechanic Breakdown (Normal/Heroic) Quick Guide Mythic Changes
2.

Mechanic Breakdown (Normal/Heroic)

1.1.

Phase 1:

  • Start the fight by using the portals to get to the boss platform. This will pull the boss.
  • Kill the two Living Mass adds, pick up the Excess Mass Icon Excess Mass and group together in the middle to survive Devour Icon Devour.
  • Split the raid in two teams and go left and right with the active tank staying in the middle.
  • Living Mass (Adds):
    1. Two of these are on the platform when you pull the boss. After this they only spawn from Massive Smash Icon Massive Smash.
    2. When killed they drop an Excess Mass Icon Excess Mass underneath them. Assigned players should pick these up.
    3. Excess Mass Icon Excess Mass is used to pull players down that have Reverse Gravity Icon Reverse Gravity and to create Collective Gravity Icon Collective Gravity safe zones to survive Devour Icon Devour.
  • Tank Mechanics:
    1. Fists of the Voidlord Icon Fists of the Voidlord acts as the melee swing on this fight. This will deal damage directly to you but also deal damage to players in 15 yards.
    2. This will also knockback any players hit.
    3. Tanks should stay away from the rest of the raid.
    4. You can be with the raid when you are not tanking the boss or are soaking Devour Icon Devour.
    5. Massive Smash Icon Massive Smash is the tank swap for this phase. This will knock the entire raid away from your location.
    6. Stand in the centre of the platform to create a consistent space that players will know how to handle the knockback.
Tank being hit by Massive Smash Icon Massive Smash and the raid getting knocked away.
  • After dealing with the first Devour Icon Devour the fight will follow the below pattern:
    1. Massive Smash Icon Massive Smash knockback from Tank.
    2. Spread out with Dark Matter Icon Dark Matter circles.
    3. Living Mass adds will spawn. Two on each side. Kill these and pick up the Excess Mass Icon Excess Mass
    4. Soak Antimatter Icon Antimatter pool. Wait for it to activate.
    5. Two players will recieve Reverse Gravity Icon Reverse Gravity. Move to the back of the platform.
    6. Players with Excess Mass Icon Excess Mass stand under them to pull them down.
    7. Cycle 1: Repeat the above stages.
    8. Cycle 2: Devour Icon Devour. Players with Excess Mass Icon Excess Mass group up to create the safe zone.
    9. Repeat until Dimensius has been defeated to start the Intermission.
  • Each Devour Icon Devour will require 1 more Excess Mass Icon Excess Mass to create the Collective Gravity Icon Collective Gravity safe zone. As the boss will gain Growing Hunger Icon Growing Hunger stacks.
  • As you will have a maximum of four Excess Mass Icon Excess Mass this means that the fourth cast will kill you.
  • Antimatter Icon Antimatter:
    1. One of these pools will spawn on each side of the platform. If you are inside of it when it activates you will take a large amount of unnecessary damage.
    2. Once it activates it will start a timer which will deal a very large amount of raid damage.
    3. Standing inside of it and soaking will reduce the raid damage.
Antimatter Icon Antimatter spawning and players soaking.
  • Reverse Gravity Icon Reverse Gravity:
    1. Two players will be targeted by Reverse Gravity Icon Reverse Gravity. They will be flung into the air and fly towards the boss.
    2. If they reach the boss they will die.
    3. They can be bought back to the ground by the players with Excess Mass Icon Excess Mass standing underneath them.
Reverse Gravity Icon Reverse Gravity players moving to the back of the platform and Excess Mass Icon Excess Mass players bringing them down.
1.2.

Intermission:

Visual example of the flying part of this Intermission.
  • At the start of this phase every player will gain the buff Soaring Reshii Icon Soaring Reshii. This allows you to mount up and fly to the platform.
  • If Soaring Reshii Icon Soaring Reshii expires you will die.
  • Follow the rings and avoid any obstacles while flying. If it looks like it will kill you, it probably will!
  • Optional: Stellar Core Icon Stellar Core
    1. In each of the flying phases there are three Stellar Core Icon Stellar Core which are away from the main path.
    2. If you have players who are skilled Dragonriders they can pick these up to deal 5% damage to the minibosses each.
    3. The locations of these are noted on the images below.
  • Flight 1:
  • Flight 2:
  • Intermission Platforms:
  • When you land on the platform you will have a miniboss to deal with. Each miniboss has a different special ability.
  • Platform 1: Avoid the Mass Ejection Icon Mass Ejection frontal from the miniboss. This is aimed at the current tank.
  • Platform 2: Move away from the Stardust Nova Icon Stardust Nova circle.
  • Shared Abilities:
    1. Kill one add in the line going towards the boss. Watch the bosses hands and avoid Extinction Icon Extinction by moving to the left or right edge.
    2. Kill one add in the line going across the platform. The boss will push the raid away with Gamma Burst Icon Gamma Burst get pushed through the gap.
    3. If any Tank gets to 15 stacks of Touch of Oblivion Icon Touch of Oblivion they will die.
    4. For the second platform drag the miniboss towards the boss on the opposite side of the platform.
1.3.

Phase 2:

  • Pop all CDs at the start of the Phase. Dimensius is Destabilized Icon Destabilized. Stunned and takes increased damage.
  • You can hit the boss while you are falling to the ground.
  • Do not stand under the boss, or move outside of the ring that is on the edge of the platform. You will die.
  • After Destabilized Icon Destabilized ends Voidstars will spawn on the platform. They will deal raid wide damage when they land and significantly more damage if you are standing under them. You will run into them to survive Devour Icon Devour later in the phase.
  • Each cast of Devour Icon Devour will make the platform smaller and after 3 Devours you will wipe.
  • Later in the fight Voidstars will be destroyed by Dimensius with Supernova Icon Supernova run away from them when this happens. This Voidstar will now become a Black Hole Icon Black Hole making them 1 shot you if you run into them.
Voidstars spawning.
  • Darkened Sky Icon Darkened Sky:
    1. Three Darkened Sky Icon Darkened Sky circles will appear on the platform. Pay attention to the order they spawn in and move next to the first one.
    2. If the second one spawned on your left, move left of the first circle and vice versa.
    3. Stand next to the first circle and soak the wave.
    4. Wait for your X debuff to expire and run into the second wave.
    5. Stand still and get hit by the third wave once X debuff expires.
Darkened Sky Icon Darkened Sky circles spawning and players moving through them.
  • Darkened Sky Icon Darkened Sky:
    1. Three Darkened Sky Icon Darkened Sky circles will appear on the platform. Pay attention to the order they spawn in and move next to the first one.
    2. If the second one spawned on your left, move left of the first circle and vice versa.
    3. Stand next to the first circle and soak the wave.
    4. Wait for your Shadowquake Icon Shadowquake debuff to expire and run into the second wave.
    5. Stand still and get hit by the third wave once Shadowquake Icon Shadowquake debuff expires.
  • Tank Mechanics:
    1. Fists of the Voidlord Icon Fists of the Voidlord acts as the melee swing on this fight. This will deal damage directly to you but also deal damage to players in 15 yards.
    2. This will also knockback any players hit.
    3. Tanks should be ahead of the raid.
    4. If your positioning means that you will take two stacks of Darkened Sky Icon Darkened Sky use a defensive CD.
    5. Cosmic Collapse Icon Cosmic Collapse is the tank swap for this phase. This projects a circle around you which deals increased damage to players inside of it.
1.4.

Heroic Changes:

  • Phase 1:
    1. Dark Matter Icon Dark Matter will now drop a permanent pool on the ground. Place these on the edges of the platform.
  • Intermission:
    1. Null Binder adds are now present on the platform. They will repeatedly cast Null Binding Icon Null Binding which deals large amounts of raid wide damage and applies a stacking slow to the raid.
    2. If you have Death Knights in the raid they should grip these to the raid instantly and you will cleave and stun them.
    3. If you do not have any DKs then you will need to CC them.
  • Phase 2:
    1. Cosmic Collapse Icon Cosmic Collapse from the active tank will now pull all players towards the tank. Stand just outside of the circle from the tank and get safely pulled into them. As soon as this ends a tank swap will happen. The tank should move right and the raid moves left.
    2. Avoid being pulled through Voidstars or the boss. You will die.
2.

Quick TLDR Guide

1.5.

Phase 1:

  • Start the fight by using the portals to get to the boss platform. This will pull the boss.
  • Kill Living Mass adds and pick up the Excess Mass Icon Excess Mass.
  • When Devour Icon Devour is being cast group the Excess Mass Icon Excess Mass together and create a Collective Gravity Icon Collective Gravity safe zone to survive.
  • After Split to your assigned sides of the platform.
  • Avoid being knocked off the platform from Massive Smash Icon Massive Smash. You will be knocked away from the Tank. The tank should be in the centre of the platform.
  • Spread out with Dark Matter Icon Dark Matter circles. On Heroic this will leave a permanent pool on the ground.
  • The following cycle will repeat for the rest of the phase:
    1. Massive Smash Icon Massive Smash knockback from Tank.
    2. Living Mass adds.
    3. Soak Antimatter Icon Antimatter pool. Wait for it to activate.
    4. Players with Reverse Gravity Icon Reverse Gravity move to the back of the platform. Players with Excess Mass Icon Excess Mass stand under them to pull them down.
    5. Cycle 1: Repeat the above stages.
    6. Cycle 2: Devour Icon Devour. Players with Excess Mass Icon Excess Mass group up to create the safe zone.
  • Tanks: In this and Phase 2 any players in 15 yards of you while tanking the boss will be hit and knocked back.
1.6.

Intermission:

  • Fly to the boss platforms. Follow the rings, avoid floating rocks and lazer beams. Enjoy this part of the phase.
  • Maintain Soaring Reshii Icon Soaring Reshii you will start with a few seconds of this buff and it will refresh each time you fly through a ring.
  • Optional: Three players can fly away from the main path to collect Stellar Core Icon Stellar Core. These have set locations and will deal damage to the platform minibosses.
  • Both Platforms: Kill one add in the line going towards the boss. Watch the bosses hands and avoid Extinction Icon Extinction by moving to the left or right edge.
  • Both Platforms: Kill one add in the line going across the platform. The boss will push the raid away with Gamma Burst Icon Gamma Burst get pushed through the gap.
  • Both Platforms: If any Tank gets to 15 stacks of Touch of Oblivion Icon Touch of Oblivion they will die.
  • Both Platforms - Heroic Only: CC or Grip the Nullbinders to prevent them from casting Null Binding Icon Null Binding.
  • Platform 1: Avoid the Mass Ejection Icon Mass Ejection frontal from the miniboss. This is aimed at the current tank.
  • Platform 2: Move away from the Stardust Nova Icon Stardust Nova circle.
1.7.

Phase 2:

  • Pop all CDs at the start of the Phase. Dimensius is Destabilized Icon Destabilized. Stunned and takes increased damage.
  • Do not stand under the boss, or move outside of the ring that is on the edge of the platform. You will die.
  • Avoid the Voidstars on the platform. You will run into them to survive Devour Icon Devour later in the phase.
  • Move next to the first of the three Darkened Sky Icon Darkened Sky circles and get hit by the ring that projects from it. Wait for your Shadowquake Icon Shadowquake debuff to end and get hit by the next one and then wait for the last one to reach you.
  • Tanks: Make sure you are ahead of the raid so they are not hit by Cosmic Collapse Icon Cosmic Collapse.
  • Heroic: Cosmic Collapse Icon Cosmic Collapse will pull the entire raid towards the tank. Make sure you do not get pulled through the boss.
  • Stand in a Voidstar to survive Devour Icon Devour. Each cast will make the platform smaller, and after 3 Devour Icon Devour casts you will wipe.
  • Some Voidstars will be targeted by Supernova Icon Supernova and turn into Black Hole Icon Black Hole. Avoid these.
2.

Mythic Changes

Coming Soon. This page will be updated after Dimensius has been defeated on live servers.

2.

Changelog

  • 18 Aug. 2025: Guide updated for Normal + Heroic.
  • 08 Aug. 2025: Guide created.
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