Guide to the Blackrose Prison Unchained in The Elder Scrolls Online.
For most of the fight stack in the middle. On the 2nd and 3rd rounds, when the Mage (Incinerator) spawns, both DDs stack on the Fire Mage and kill it while the tank and healer stay in the middle (BRP Addon Helper show with an arrow where and when exactly Mages spawn). On the 4th round 2nd wave, 2 Fire Mages spawn on the sides of the arena.
The tank taunts the left mage and stacks with the DDs on the right mage. When the left Mage moves to the middle, the tank can come back to the middle. The DDs finish the right Mage and can go back to the middle too. The healer stays in the middle and chains the remaining ads (can interrupt right Mage if needed).
During all trash rounds, Cleaver/DK will spawn most of the time from the entrance (on the 4th round there will be 2 Cleavers spawning on 1st wave and 2 DKs on last wave from the sides of the arena). During all Arena Use your ultimates to kill the DKs and Cleavers where at on the 4th round make sure to not use your ultimates on the last wave so you can have it for the Boss fight.
Stay in the middle in a square formation: the tank stays on the exit side, the healer on the entrance side, the DDs on the right and left sides close to the boss (you should make the formation at the spot where the boss spawns). Block the meteors when they appear and don’t stack/stay in red (the tank doesn’t need to move). If there is not enough DPS the boss should stay at its spot and start the spinning mechanic without teleportation.
During most of the trash fights, stack on the exit and don’t stay in netch aoe. During the fight don’t stay in the archer’s cone, don’t stay too close to the adds since most of them do cleave damage (especially Crocodiles/Hoarvors), try to move around the netches. Save your ultimates for big adds (Archers, Haj Mota, Trolls, Wamasu).
Our group uses 2 horns on the 2nd round for the Archer/Wamasu, on the 3rd round for the last wave on Troll/Archer, and on the 4th round for the Wamasu. The tank should always taunt the crocodiles/big adds and chain the small adds.
In the 1st round, there will be only 1Archer spawning on the exit. On the 2nd round there will be a Haj Mota spawning and right after it, the Archer on the exit side. On the 3rd round every wave has a Troll spawning (remember to not stay too close to the Troll). On the last wave of that round, a Troll will spawn left side and an archer will spawn right side. Everyone stacks on the Troll’s side so the Archer will move to the middle. When the Archer moves to the middle stack on him with troll and kill them. While stacking on the Troll keep your eyes open on his stomp and the netches.
On the 4th round the last wave there will be Wamasu spawning on the exit and 2 archers on the sides of the arena. Kill the Wamasu, then stack on the left Archer. Go to the right archer when it comes to the middle. To stack the Archers, the tank taunts the right Archer and moves to the left Archer. When the right Archer is in the middle, move to the right side so that the left archer comes to the middle as well. Remember to during that fight keep your eyes open on netches.
The boss spawns in the middle and teleports here and there. He spawns a troll at 80%, so focus on the Troll and move to the boss (remember to not stay close to the Troll).
Later on, a Haj Mota spawns at 60%. When fighting the Haj Mota, try to face it to the wall so it doesn’t travel too much and kill it. Use your ultimates on it, but wait until the boss is away so you don’t overdps the boss (if the boss drops to 40% while the Haj Mota is alive, the Haj Mota will enrage). After the Haj Mota is dead, move to the boss.
When the Wamasu spawns at 40%, the tank stays with Wamasu, and the rest moves to the boss and kills it. During the Boss fight, don’t interrupt the Boss so that the Bleed stacks drop from the tank.
When Bug Bomb happens on the DDs or healer, they stay stacked and the tank keeps facing the boss/adds away. If the tank has it, use Magma Shell/Barrier and stay alone. In some situations, the tank can get the mechanic twice. In that situation for the second Bug Bomb, everyone stacks on the tank and pays attention to their surroundings.
PS: It’s good to have a purge on the healer/tank throughout the arena since there is a lot of deadly/purgeable dots. Don’t stay too close to the ads when they do their mechanics. Troll do the stomp. The Haj Mota can kill you when it starts charging even if you’re behind it and his shockwave can kill you if not blocked. The Wamasu has a deadly conal lightning attack and shoots out lightning spheres in all directions. Both Crocodiles and Hoarvers have one-shotting conal attacks.
Stack on the middle and DPS. The most important task is to chain/interrupt Infusers and don’t stay stupid. Ultimates can be used for stacks of Infusers/Gargoyles. When Gargoyles spawn you can move to the entrance so their AoE will spawn on the side and not in the middle.
On 1st round 2nd wave 3 Infusers spawn. Try to block cast during this fight until the Infusers are dead. During the 4th round, 1st wave is also blockcast since 4 Infusers will spawn.
Stack in the middle and the tank needs to go to the side when the Bat Swarm counter is on 5 seconds. The boss likes to drop the swam quicker than the counter indicates. Come back to the middle when the Bat Swarm was dropped on the ground.
While the tank is moving the boss aside, the healer can chain the adds and the DDs focus them or range DPS to the boss. Interrupt the boss and Infusers ASAP.
When a Colossus spawns, try to blockcast (we had situations where he kept attacking people despite being taunted). Use your ultimates on it since a Colossus being up made the Boss invulnerable.
When you’re about to get cursed, try to stay close to the portal and cleanse yourself ASAP (the boss is immune when you are cursed). After that chain in all the adds from the portal.
During Boss fight try to face the boss away from the group and DDs and healer pay attention to Boss moves. Always try to stay away or behind the Boss since she is doing AoE Heavy Attack.
1st Round – Stay on exit throughout the round 1st wave a Cleaver spawns on the exit. 2nd wave 2 mages and 1 Infuser spawn on the sides and 1 crocodile spawns on the exit.
Taunt the crocodile and chain the Infuser. The DDs interrupt the Infuser if needed. The healer focuses on range interrupting the mages. After chaining the Infuser, the tank can taunt the mages and move to the entrance corners to stack them. When the Infuser is dead, the DDs follow the mages and kill them. During the 3rd wave, an archer spawns on the exit. Stack on it and kill it (remember the netches).
2nd Round – During the 1st wave, the healer stays on the exit side and chains all the archers. The tank taunts only the Cleaver and moves to the middle. The DDs stack on the left side, kill the mage and then move to the Cleaver. At this point kill only the Cleaver.
The 2nd wave starts when 2 adds are dead (Cleaver/mage). On the next wave, a DK and other small adds spawn. The tank taunts the DK and stacks it in the middle. The healer should keep stacking small adds on the side (again chain archers and taunt 2 small melee adds, but watch out for their heavies as they can one shot you if not blocked). The DDs focus on the DK and after it is dead, kill the rest of the adds (again, the next wave starts when 2 adds are killed). Use your ultimates while fighting Cleaver/DK.
On the 3rd wave, the boss and 2 mages will spawn. The tank taunts the boss and stays in the middle, while the healer taunts the 2 mages and goes to the exit corners to stack them in the middle. The DDs stay in the middle, DPS the boss, and interrupt mages if needed. After the mages are stacked, the tank can taunt the mages. Focus the boss and cleave down the mages. Move the boss closer to the mages if needed.
3rd Round – Stack on exit and kill the archer (remember about the netch). After the archer is dead, a Haj Mota should spawn on the left side. Taunt it and kill it on the exit. While fighting the Haj Mota, you can use one horn and try to face it towards a wall, so it doesn’t move too much.
After the Haj Mota is dead, the archer boss and crocodiles spawn. Go to the middle, taunt everything, and use the rest of your ultimates. With enough DPS the boss should die without teleporting and spawning a troll. If you don’t have enough DPS, keep your focus on the boss (move to him when he teleports) and after he is dead, the troll will disappear.
4th Round – During the 1st wave, stack in the middle and chain everything. On the 2nd Wave, stack on the entrance until the gargoyle AoE spawns and then move to the middle. While waiting at the entrance, the Infuser from the exit should move to the middle. When back in the middle, chain the second Infuser, which spawns on the left side of the room. After they are stacked, use one horn and one DD ultimate.
After the gargoyle is dead, the 3rd wave starts. On the 3rd Wave, the boss spawns in the middle, 1 Infuser spawns on the left side, and 1 cold mage on the right side. Chain them in and focus on the boss. When Bat Swarm appears, the tank moves the boss aside. Don’t move to the boss too much to avoid getting trapped by the netches. At this point, the DDs focus on the Infuser. Rinse and repeat and don’t forget to chain in the adds from the portals.
The tank taunts the mage boss and moves to the torch. While fighting the mage, use the tank ultimate to shorten the fight and avoid her spinning mechanic. We used only on ultimate on the mage since we do not need more damage on the archer boss – this is explained later. When the mage hits 30% Health, the archer boss will spawn on the right side of the tank (if the tank stayed on the torch). Keep focusing on the mage boss and cleave the archer boss a little bit so that the Wamasu can spawn (Wamasu spawns at 50% of archer boss health).
After the mage is dead, focus on the Wamasu (or focus on the archer boss a little if the Wamasu has not spawned yet). At this point try to not cleave the archer boss too much. When the Wamasu is dead, stack in the middle and DPS the archer boss with light and heavy attacks to around 42% health and wait for Bug Bomb to spawn. He will spawn Bug Bomb on the group and then teleport. Wait for Bug Bomb to disappear and the boss to teleport again. Meanwhile chain in the adds from the portals.
When the boss teleports, rush to him, use all your ultimates, and burn him. While nuking the archer boss, a Haj Mota will spawn at 40% of the archer’s health near the boss. The next boss spawns at 30% of the archer’s health in the middle. The tank needs to remember to taunt them both. The Haj Mota will disappear once the archer boss is dead. The tank keeps in mind that the archer boss is getting nuked so the Haj Mota and next boss will spawn almost instantly.
After the archer is dead, the tank stays on the side until Bat Swarm appears. Then the tank moves to the middle and kill the last boss. While fighting it, remember about the curse since you will have only one portal to cleanse in this fight. So keep in mind where the portal is.
During all trash waves, stack in the middle and chain in everything. One DD will need to move to the sides to destroy the totems (in our progress killing one totem per round was enough). Use ultimates when a Vengeful Revenant or a Soul of Void (black ghosts) spawns. The Vengeful Revenant creates a rune on the floor on which the tank needs to stand until it disappears.
During all the trash fights, the healer can chain in the adds while the tank just taunts them (it helped our group). After chaining in the adds, it’s good to use an immobilization skill to stop them from moving out of the middle. It’s very important for them to stay in the middle so that you can keep interrupting them. For that, you can use time freeze as stun or a combination of Caltrops and the DK Talons. A Warden’s portal immobilizes the adds for a short duration after they’re chained in as well.
PS: During the trash fight, one of the most important things is interrupting. In our prog, we had a stam DD using Vateshran dual wield to AoE Interrupt adds. Other ways to deal with it is for everyone to bash or for a DK to use Deep Breath (best on the tank).
The tank stays in the middle and faces the boss towards the entrance. The rest of the group stays behind the boss. Interrupt when needed and one DD moves out and kills a totem when it spawns.
While the ghost phase is happening, the tank goes to the side with the boss until the explosion timer appears. After the explosion, the boss will cast a negative field on its location. The rest of the group will collect “Yellow Ghosts” (remember to touch the ghost body, not just the yellow circle) during the ghost phase.
One DD collects ghosts from the right rune to the left rune (and uses the left rune to cleanse). The healer collects ghosts from the left rune to the middle rune (and uses the middle rune to cleanse). The last DD collects ghosts from the middle rune to the right rune (and uses the right rune to cleanse).
Use your ultimates at the start of the boss fight and after the explosion when the boss is in the middle. During the boss fight, boss clones will appear. The tank taunts them and the DDs cleave them down.
The boss and the clones will keep jumping during the fight. It’s very important to place the jump AOEs on the sides of the arena during the ghost phase. The boss/clones will jump on a random person and you don’t want a negate field to be cast in the middle. When the boss/clones land from a jump, block the wave. When you are not currently doing a ghost phase, stay in the middle with a jump and move aside when the boss/clones are about to land (and remember to block).