So over my many times beating (and many many more times trying to beat) the Heliophage, I would have to say that the part I’ve wiped on the most and with the most agony, is the two bosses just before Rendain.
So two days ago I took a step back and looked at why that was. Even in my tips thread, (Shameless Plug:
Many of these tips are still applicable even after patch), I said to kill Nix first, then clean up all the adds before proceeding to kill the varelsi. The problem with this solution is that after you burn down Nix, many thrall adds have spawned and there are probably a great deal of skulks making the sky black with tar balls. While manageable on the island where Nix spawned in the cave (debatable sometimes), I’ve found that if someone dies, then it is nigh impossible to get back into the fight with so many adds focusing you as you launch onto the middle island.
So I luckily had an obedient pug group yesterday that followed what I pinged, and I decided to just kill the varelsi boss while trying our best to avoid Warlord Nix. We got knocked down a few times and had one death, but they had no problems getting back into the fight without the thrall brutes and friends hammering them. After killing the varelsi, kill Nix on the same island as the varelsi was and get up to the flat platform and jump on the crates with your backs against the wall ready for rendain. This makes it so the thralls on the other islands wont notice you up there. Just mind the ones that do and take care of them before proceeding to pound on Rendain and you should get through without too much trouble. We did that and we finished with a gold and in my fastest time of 47 minutes and 14 seconds!
Let me know if you have any other game-changing tips that may go against the grain but work out!