So I’m trying atm to kill the Ancient Dragons with my lvl 53 Hellborn Krieg. Using Grog, Good Touch (fire obviously), and a blue Hyperion incendiary shotgun, so nothing very special. Fire hawk shield, Slayer of Terra class mod, and Explosive Fastball simply for damage. I sometimes manage to kill Healianth and rarely also Brood or Boost. Might have killed all 3 one time, but incinerator is a bitch with Hellborn Krieg. Point is I always die. Been thinking it might be an idea to farm the Conference Call but I feel farming is such a hassle… In most of the guides people do, they already depend on the Interface or Butcher, which is kind of stupid in my case (and in many cases I believe) because I haven’t killed any seraph guardians yet. Any suggestions? 
You’re using shock weapons against Incinerator, right? You could try tesla grenades to keep your health high whilst using the grog nozzle.
I can’t suggest much here because I don’t remember ever trying to face the dragons below lvl 62 though.
Are you also making sure NOT to attack Incinerator while he’s on the ground with his wings folded? I found out the hard way that his folded wings give him 100% damage reflection- bullets, grenades, splash damage- nothing works while he’s like that. Once he drops his wings slag him and light him up with your best non-fire weapon- heck, RTB if you have to to stay alive…
Well I rarely get as far as getting Incinerator to land, at least on purpose. Well I suppose it’s more often than not that my shield is down, and that’s when things start to get scary, being fairly dependent on the Novas from FotF.
Yeah I usually try to kill healianth first, so I tend to shoot at him even when one of the others are on the ground. Yeah I know about the reflection part. I’ve got an Evie (shock pistol) which might work on him when I get that far.
I did some farming some hours ago and got a striker among several other legendaries, with a 72% Crit dmg, so seems to work very well considering how easy it is to score crits on the dragons 