This bug is a really gamebreaking one, which is the reason I had it both reported and FIXED before being made public!
This was probably the most tiring one shot or "solo" I done so far. It took a total of 50 hours to test around and get this one shot complete! (40 hours of real attempts).
You might be wondering why it would be considered "broken" then. The reason is that if a lot of people were to coordinate to abuse it (many
Chamans summoned at the same time) a lot of encounters would be easily downed.
Anyhow let us go through the whole process together!
It all comes down to
Impact foudroyant, the Enhancement Shaman AOE ability that didn't have a cap on its damage boost to
Frappe-tempête. I started testing around with a friend and it went to 805%!
Then I went into other locations and kept stacking to see how high it could go. It seemed to go to infinity!
So the next step was to plan how to one shot a raid boss, and how many stacks was required to do it.
Drest'agath was the obvious target since he got the lowest HP of all the raid bosses in Ny'alotha. Thankfully he heals the damage taken, he doesn't prevent it (so he is still vulnerable to one shots).
At first I needed something like a 30 000% damage boost (6 000 adds) that was before I geared myself with lots of damage boosts (Badge,
Frappe-tempête traits etc). This made me able to lower the requirement to 4800 adds.
I tested a lot of different dungeons and raids to find a boss or NPC that kept stacking up more and more adds.
Cœur du Magma,
Labyrinthe des Ombres,
Profondeurs de Rochenoire,
Ulduar, Azjol'nerub etc.
The only ones that I found that were working (to infinitely stack mobs) were post Cata dungeons.
I tested around with both
Thalnos le Déchiqueteur d’âmes and
Grande prêtresse Azil. However
Thalnos le Déchiqueteur d’âmes stacked up adds too slow to be efficient and
Grande prêtresse Azil killed her own adds with her abilities (was too hard to keep adds away from them after lag arrived).
After those I tried with
Corborus and he was the perfect boss for this! Since you can position yourself to avoid all his knockbacks. Making you able to semi-afk while the adds start stacking (as long as you don't get logged out for being away too long).
I tried with 4800 adds at first, but the lag was overwhelming. All my active buffs (
Glissement de terrain,
Ascendance,
Impact foudroyant) were gone before the loading screen to
Drest'agath were completed.
After discovering the Unbound Force combination, to guarantee crit if it procced, I weren't having much luck with it at first. Since I needed the 20th stack to proc just as I used
Impact foudroyant or
Fouet de lave to finish off
Corborus.
So my other plan was to aim for a main hand crit / off hand non crit kill.
But that once again, made the combo just a second too slow with all the lag, so the buffs ran out. Chance of failure increased quickly as the timer went above 3 hours 10 minutes.
Anyhow I kept trying and finally, I had the perfect proc of Unbound Force as well as a fast combo / loading screen which allowed me to combo the boss for 39 Million
Frappe-tempête! (
Frappevent).
A huge thanks to my friends who helped me get summoned into the raid!