My boots weren’t mogged ;~;
I was third destro lock world wide to complete the challenge. First server wide. (Before patch 7.2.5, our rework) (Weakauras below)
The biggest tip I can give is to fear Tugar mid earthquake cast- before the eggs fall; stalactites will still fall from the ceiling, so dropping worm DR stacks won’t be an issue, and you won’t have to deal with any extra adds. Fearing or stunning the worm interrupts his screech, but I would only recommend doing so after Tugar is already dead. (I take mortal coil instead of shadowfury because of the instant cast and heal, however both work)
You can either use the GrimServ felhunter to interrupt Fel blast, when you have everything else on CD, or fear him- I feared him so I could GrimServ the imp for extra damage (my interrupt rotation was felhunter, mortal coil, felhunter, fear, then repeat). Halfway through killing the worm, I realized that it’s pointless to continue using the felhunter since he can’t be interrupted normally. After Tugar is dead, switch to your imp to down the worm faster- you’ll get an extra mini-heal from command demon, and you’ll be doing more damage.
My furthest raid progression as of this video is 10/10 heroic Nighthold.
If you didn’t check at the end of the video (everything is there), my equipped iLvl is 898, my talents are 1123121, and my legendaries are the belt and sephuz (the proc is godly for this fight)
I should have taken Soul Conduit instead of Wreak Havoc- it probably wasn’t worth taking WR since I had to solo kill worm at around 50% anyways, and he isn’t a threat at all, but if you still want, you can take WR for the extra shard gen, and the little extra damage on the worm.
Since people have asked, here are my WAs (they work best with a 1920×1080 monitor):
Item Procs (Trinkets, Legendaries, etc): https://pastebin.com/Z8yNnVW9
Warlock Specific timers: https://pastebin.com/8kdBvGPV
Soul shard tracker (needs its own group): https://pastebin.com/W2NSQvwT
Good luck to everyone putting in more attempts ^-^