I my two step I shadow burn and chaos bolt, otherwise I never got that thing out there as much as I need to. Such is life with using the trailing /cast, its never as tight as you really need it to be. Which is good for manual weaving for some classes.
After that change I am not sure if you want that reset=5 and not a reset=target/5 and move conflag to the /cast Chaos Bolt.
Code:
/castsequence [harm, nodead] reset=target/5 Immolate, Incinerate, Incinerate, Incinerate
/cast [combat, harm, nodead] Conflagrate
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