The DPS check is extremely tight, and the mechanics of the last phase extremely unforgiving. The soft enrage of Super Saiyan Nidhogg's attack that you need to group up on this also extremely punishing, delivering increasingly severe damage. The groups that I've attempted it with that made it past the DPS check have all been annihilated by that mechanic.

It's a really fun fight, and I really enjoy the mechanics of it, but I feel it would only be manageable if I could call the fight over Ventrilo (which is not an option in DF). I would personally prefer to conquer it with an FC party, or with a static group, but neither option is readily available.

I'm willing to bet that SE is aware of the difficulties faced, the abysmal clear rates, and the astronomically high drop rates around the encounter, and that nerfs are incoming. And while a prideful part of me wants to clear it before they nerf it, I welcome the nerfs, because it means a group of total strangers will be able to win.