Well you seem to have a fairly fear prone group. Anything I have to say is complete theorycraft given that I run one of those 'unmentionable' groups.

I would think you might be able to get through Hellmaw reliably by doing the following in order

Fear Ward the priest (not the pally) Hopefully he'll chase someone else but if he chases the priest then fade/shield/self heal, etc. You can chase down the pally with your priest, then you're together and all is well.

Then prior to next cast Bestial Wrath on your hunter pet (may need a talent spec to get it? Iono) and keep growl on for that fear then he'll just waste time killing the pet.

Third fear, Divine Shield the Priest, similar to first

4th or maybe in the middle if something goes awry, PvP anti-fear trinkets. I believe they're very cheap/easy to get but not sure since I've had mine since '05

and by then... well, he better be dead.

Also might use a warlock pet (in the case that you're currently just using imp) so that he's got another less important target to go after.


On Blackheart... well the totem pushers get a little payback. 4x chain lightning vs. yourself FTL. That's the lotto one for me. Our shields and chain mail do help a bit with the mitigation though. I think the ticket here for everyone is to get your stam up such that you survive a beat down by your own crew. Post incite group heal, fade, and be patient while you struggle to get aggro back with your blue rage tank (frustrating, I pot a lot on this). What I do here is take the crew around the left side and park them in the corner by the door, then run out with my pally and pull. This 'generally' keeps them grouped together so you don't waste a whole phase chasing down your own runners. A lot of teams (non multiboxing at least) always wanted to keep people separated so they didn't hurt each other as much. This always frustrated me as a healer because then I couldn't heal them either. If you have the stam to survive each chaos then stay grouped and simplify everything. If you can keep all of your DPS alive, then you're healer won't run out of mana. Also key up misdirect on hunter to help get aggro back on Pally. Pets that can pull aggro will help to.

HTH