Did you downed the conclave?

I would think this fight would look like opposite day, much like boxing the lichking from the throne.

I would for kicks just try an attempt with just getting timing working by doing phase one until the enrage occurs. Just avoiding everything and taking the absolute minimum damage. Its going to be 24m health, which isn't going to be forever. But this fight has some wipes built into it, unlike Alizabal where its a straight up fight.

When your serious, you can do phase two likely you can just blow up the boss and out gear him and any skip the debuffs. But still not wasteful of cooldowns, likely want everything off cooldown, every healthy and sober before phase3.

You likely could with not much trouble, setup combat log, grid-like-panel with , and then go back to isboxer to figure out how to make a kick repeat window then when you clicked a raid frame that character swim down and a specific key for all movement swim.

Also want to have some burst dps macros for the debuff at this stage, unless you need them in the previous stage. The mass movement thing might be a raid ender if you cannot spread out and deal with healing.

But really here you have to do a few million health of damage, its really just balls out mode.

I just worry about the chain reaction problems, loosing healers. I feel confident if you can safty dance the first part casually your good to go.