I figured out my problem. What happens if during the macro he casts the ability before conflagrate then, the mob dies, he switches to the next target and gets stuck on Conflagrate. I dunno, I've been lazy with click. I really need to look into that. Wouldn't the same problem occur though? Switching targets and getting stuck on Conflag.

#showtooltip
/assist Rakoms
/assist Smokar
/castsequence [nochanneling] reset=target/combat Curse of the Elements, Immolate, Conflagrate, Incinerate, Incinerate, Life Tap, Incinerate, Incinerate, Incinerate