← Back to GuidesDisclaimer: This guide assumes you know and understand how to defeat the heroic encounter, and as such will not be talking about basics of the boss itself. This is intended to teach you the differences between heroic and Mythic, and how to defeat the Mythic version. If you need a refresher on the basics of the encounter, please visit our heroic guide.
Mythic Changes
New add, Mawsworn Overlord
Larger versions of the regular adds
Has a circle around him. Any other adds within the circle are buffed with Defiance, making them immune to crowd control and deal 200% increased damage
Important note here - this does NOT REMOVE existing crowd control. It only prevents NEW crowd control
This add cannot be gripped or knocked back, must just be burned down
Additionally, if the Overlord reaches Garrosh, it grants Defiance to ALL Agonizer adds, super bad news bears
Torment hurts a lot more, you just die now
Warmonger Shackles hurt a shitload more now too, need to plan out timing of popping them
Hellscream is only a 25 second cast on Mythic. If a tick goes off, you’ll wipe
Echoing Screams got buffed, passive 4k shadow every 2 seconds to the raid
Ruinblade forces tank swap each cast now
Strategy
The primary bits of difficulty here are dealing with the adds properly, and the Warmonger Shackles. Both require a good deal of coordination.
Comp - 2 tanks, 5 healers, 13 DPS
Bloodlust on pull
Tanks need to swap after each Ruinblade
Adds
You’ll want to have multiple players with knockbacks and/or grips in your raid
As soon as the adds spawn, isolate the Overlord
Use those knockbacks or grips to move smaller adds away from the Overlord
Stack up the Agonizers, away from the Overlord
Stack your Brands of Torment on the Overlord, and blow it up as fast as possible
As soon as the Overlord dies, everyone should swap and annihilate the Agonizers
Bring the Brands of Torment on top of the Agonizers for the damage buff
You may get a Torment while you're trying to kill adds. Keep them slowed / CC'd if this happens
Make sure you always have slows applied to the Agonizers
Utilize Brands of Torment to their fullest. Always double stack these on whatever you’re killing - the extra damage is incredibly powerful
As a note - you CAN hard-CC the Agonizers. Freezing Trap, Imprison, etc will work. Doing this is better than just a slow, so hard-CC them when possible
You can see this in the gif above
Warmonger Shackles
Assign groups of 3 for this before you pull. You can NOT do this twice during the same fight.
Plan for 6 sets of Shackles, meaning 18 people need to yoink chains
Assign every player except your 2 tanks
In your assignments, specify which shackle each player is doing - left, center, right
When these come out, everyone in the raid should stack near the center of the room
Drop a Warlock’s Gateway from the middle Shackle, to the back of the room
The assigned 3 person team should all click their Shackles, and wait for the RL to call out
Have these people click the gateway, which’ll shoot them to the back of the room & break their Shackle
Raid Leader calls out which player goes when. Ensure there’s enough time between breaks for the healers to stabilize the raid
Pop DR cooldowns during this. Barrier, AMZ, Devo, etc. This’ll help keep the raid healthy
Get through all 3 Shackles as quickly as possible, because if Hellscream gets a tick off, you wipe
The real pain in the ass is that you can have Shackles overlap with adds
When this happens, obviously still kill the adds, but prioritize getting Shackles done ASAP
You can survive being slow on adds, you cannot survive being slow on a Shackle
This overlap always happens at 4:20. See GIF below for example
Aside from that, don’t mess up heroic mechanics. Dodge swirlies, dodge Torment, survive the dance, etc.