Keep Construct 55,053,600 687 200 3,500

Introduction

Keep Construct is the second raid boss in the Stronghold of the Faithful wing. In a round arena divided in 2 parts by doors, with several statues on each side. These statues will play an important role in the fight. Keep Construct is defined by 4 phases. The Burn phase, the Core phase, the Burst phase and the Orb phase. These will follow each other up in this pattern. When starting the boss he’ll have 2 buffs on him. 1 is Xera’s Embrace which will be explained later. The other one is Gaining Power. This one increases Keep Construct’s Power Damage by 10% and Condition Damage by 3% per stack. Keep Construct will gain one stack each minute the fight persists. This buff cannot be removed.

The Burn Phase

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The reason for saying ‘Burn’ here instead of a fixed DPS percentage is fairly obvious, it’ll depend on your group’s DPS when you’ll phase this boss. The most important mechanic throughout this entire fight will be the one deciding your timings for phasing and bursting. This mechanic are the previously mentioned statues. Right away you’ll notice that Keep Construct has 2 stacks of Xera’s Embrace on his healthbar. These stacks can be ripped away from him when you kill a projection in the range of the Keep Construct. Here’s where the statues come into play. These projections will get spawned out of the statues, 2 at a time, 1 on each side of the arena, and will start walking towards a Fixated player. This Fixation is indicated by a purple marker on top of the player’s head and a message across the screen saying “You have been Fixated.”, additionally a white line will also be drawn from you to the statue. You’ll notice each of these projections has a white AoE around them. It is of utmost importance that neither of these projections walk inside the AoE of the other one. Pay close attention to which projection you have been fixated by as you might need to move out to prevent the projections from merging. If you cannot spot which one you are fixated by, a common method is jumping. This will lift up the purple marker and white line from the respected projection. Most groups will tank Keep Construct on 1 side of the arena, and move the boss to where the projection of that side will spawn, so that you can instantly kill that one. Around the time the second projection will move into the boss. 2 extra mechanics will show up. 1 being RNG and the other one being fixed. Let’s start off with the fixed one. This is a fairly easy one to avoid. Keep Construct will jump up in the air and slam down in the big red AoE indicated on the ground. This attack is called Tower Drop. If hit by this AoE you will take a moderate amount of damage and get knocked down for 3 seconds. Dodge this or gain Aegis if possible. On to the RNG one. You can get either of 2 mechanics: First one being Radiant and Crimson Phantasms. You’ll get assigned either a White or Red marker above your head. This one corresponds with White and Red phantasms scattered throughout the room. If you don’t kill all of the phantasms within the time limit, they will blow up and do massive damage. Luckily for us, if you have enough DPS you can skip this mechanic by phasing KC before they blow up. Second one being an exploding bomb placed on everyone in the raid. Much like Matthias’s bomb, this one expands and when it reaches the edge it explodes. Try to be alone when these explode as multiple AoEs will drastically increase damage taken. Again, these bombs can be skipped if you phase KC before they blow up. Kill both of the spirits and deal with the mechanics accordingly, you will now be presented with a breakbar of 3500. Break this and you’ll transition to the next phase.

The Core Phase

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When you’ve finished breaking KCs breakbar he will lift himself up in the air and you’ll start the core phase. 3 invulnerable spirits will spawn in a triangle shape, each of them having a green AoE around them. This green AoE will gradually shrink with time and requires at least 2 people to be inside of them. If there are not 2 people inside of 1 of the 3 AoEs, the entire squad will be killed. So make sure you have at least 2 people on each spirit. Once the AoEs have been stabilized, a Core will spawn in the middle of the room and 5 rifts will be placed at the edge of the arena. You can push this core slowly by attacking it, or you can hard cc it (Push, pull,…) to move it faster. This is often done by Temporal Curtain from the Chronos. The goal of this phase is to get the core to the rifts. Each rift represents 1 stack of Compromised. 1 stack of Compromised represents a 75% incoming damage increase. This debuff will be applied to Keep Construct at the end of this phase. Depending on your group DPS you can adapt the amount of rifts you’re doing. Once you’ve reached 5 rifts or pushed the orb in the red area on the edge of the arena, Keep Construct will come back down with the amount of Compromised stacks you’ve gotten and he will be Stunned. Due to this it is recommended for power classes to take an Impact sigil. Note that these Compromised stacks only trigger on Power Damage and not Condition Damage. Taking Power DPS classes here is highly recommended due to this. The boss will phase into the Orb Phase once it’s at 66%.

The Orb Phase

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Keep Construct will gain the Xera’s Boon buff, which renders him invulnerable. Each player will get a White or Red color, like the Phantasms. Keep Construct will start channeling orbs towards him in a white or red color. Collect the orbs that have your color. If the orbs do not get collected and reach Keep Construct, he will gain a stack of Magic Blast Intensity. At the end of this phase Keep Construct will do an AoE blast, this blast does damage depending on how many stacks of Magic Blast Intensity he has. Try to aim for less than 15 stacks as you will start taking significant amount of damage surpassing this number. Once this attack is over, he will still be stationary in mid. This time channeling his Phantasmal Blades attack. This attack will spawn a small bubble around him. DO NOT touch this bubble as this will apply Confusion, Torment and a massive amount of damage. As well as a rotating triangle which also applies Confusion, Torment and a small amount of damage. Once he’s done with this attack he’ll target a random player with a red beam, after some time he will jump to this player with the Tower Drop attack. Again, dodge or Aegis this. From here on out the 66-33% phase is exactly the same as 100-66%.

The Core Phase - 33% Health

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I’m highlighting this particular phase because as soon as he does the Tower Drop attack, he will no longer stay in the arena but jump in the air and spawn small AoEs which knock you down for 1s. However these are easy to avoid. Make sure you kill the projections on the place where KC jumped up in the air. Once KC is down again you can break him again and continue the fight like the other phases.

Summary

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I’m highlighting this particular phase because as soon as he does the Tower Drop attack, he will no longer stay in the arena but jump in the air and spawn small AoEs which knock you down for 1s. However these are easy to avoid. Make sure you kill the projections on the place where KC jumped up in the air. Once KC is down again you can break him again and continue the fight like the other phases.

Common Mistakes and Tips

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I’m highlighting this particular phase because as soon as he does the Tower Drop attack, he will no longer stay in the arena but jump in the air and spawn small AoEs which knock you down for 1s. However these are easy to avoid. Make sure you kill the projections on the place where KC jumped up in the air. Once KC is down again you can break him again and continue the fight like the other phases.

Common Names for Mechanics

This is a gfycat aligned to the left.
I’m highlighting this particular phase because as soon as he does the Tower Drop attack, he will no longer stay in the arena but jump in the air and spawn small AoEs which knock you down for 1s. However these are easy to avoid. Make sure you kill the projections on the place where KC jumped up in the air. Once KC is down again you can break him again and continue the fight like the other phases.