Without being some kind of chanter multiclass??? Every video I see of the fights involved a chanter of some sort using their infinite power supply that other classes don't have.

 

I just found one with Dorudugan... Again as chanter with endless skeletons. I'd like to see a solo ranger or barbarian take him down. He wiped out my entire party with a huge explosion. But a chanter can solo it... All be it from range I er 30 minutes

Edited December 28, 20187 yr by ArnoldRimmer

With a party the megabosses should be fairly straightforward.  Dorudugan is mostly understanding what gear/abilities let you mitigate/negate burn damage and what will penetrate his defenses to damage him.  Not much to make a video on to be honest.  

 

Infinite resources are mostly for solo runs due to the fact that the game is balanced around a five man team.  And even then there are ways around that.

Yes, just keep trying new things.

I have beaten them all but you have think pretty much out of the box. Your normal tactics will probably not work. Think of the Seeker, Slayer, Survivor DLC as a prep for them.