A1S first adds, Bane + pet AoE is almost all of the add's HP, usually Painflare/Deathflare are just milky and should be avoided. The adds afterwards, Bane + Obey will kill one enemy by itself, you don't have to touch your add - if you do two adds it gets hairier but that's probably not something you'll be asked to do.

A4N, I would not change Tri-Disaster around for those Jagd Dolls. There is no urgency to burn them, and usually your DoTs won't even live that long on them. Let other people do them, or just put your core DoTs up and Obey.