Looks like the recent patch broke a lot of things macro wise and fixed a few. Well here is one that is fixed so follows is my single target Chaos Bolt macro which uses Conflagrate as soon as it’s active, refreshes Immolate the second it times out and is pretty tight on the embers. On a long fight you will end up with 4 embers so have Chaos Bolt on a separate key-bind. (can do 4 in a row then) If you add an Incinerate then Immolate will be off the target for too long. Only issue I see is you munch 2 Back-drafts at the beginning of the fight or you could always pause and manually cast a Chaos Bolt with your starting ember.
/castsequence reset=target Curse of the Elements,null
/castsequence reset=target Immolate,Incinerate,Incinerate,Incinerate,Incinerate,Fel Flame,Incinerate,Incinerate, Incinerate,Chaos Bolt
/cast Conflagrate
/cast [combat]Dark Soul: Instability
/targetenemy [noharm]
And here is the Shadowburn macro for when the boss is under 20% health. Always have Shadowburn hot-keyed to also use manually for extra charges. This macro also takes advantage of Pandemic so it refreshes Immolate a tad early.
/castsequence reset=target Immolate,Incinerate,Incinerate,Incinerate,Incinerate,Fel Flame,Incinerate,Incinerate, Incinerate,Incinerate,Shadowburn
/cast Conflagrate
/cast [combat]Dark Soul: Instability
/targetenemy [noharm]
And finally my Fire and Brimstone macro. Open with this,cast Rain of Fire and Chaos Bolt/Shadowburn away happily. Remember to refresh the F&B macro and Rain of Fire. I also always have Immolate hot-barred specifically for this macro because it rarely doesn’t cast it.
/targetenemy [noharm]
/castsequence reset=target Fire and Brimstone,Immolate
Enjoy