Update 12/15/17 New Macro available. Immolates are never going to be perfect as there is no way to accurately time them, but this works MUCH smoother and better all around. This macro is performing very well and I have made a video showing you the damage on a target dummy. (2.2M peak, average 1.46M over 3 minutes with standard food and buffs (the reputation ones, not the high level raiding flasks). I am not sure I can get this any better. This is of course with my gear and your mileage will vary, but as long as you are using soul of the netherlord this macro will be great. If you have lessons and Sindori, thats a totally different thing and I’ll make a macro for that if I ever actually get them. Shoutout to Dezoran for posting his macro’s recently, looking at his gave me some insight on how I could get a LITLLE bit of timing into this thing 
Here is a video of the macro in action:
ST: Pay close attention to the talents here, as this macro does not require LifeTap in exchange for a relatively small amount of DPS loss. holding alt on the macro button will cast drain life, if you need it.
Sequences['FirelordST3'] = {
-- This Sequence was exported from GSE 2.2.03.
Author="Incindium@Moon-Guard",
SpecID=267,
Talents = "1,1/2,1,3,1,2,2",
Help = [[Use with Soul of the Netherlord]],
Default=1,
MacroVersions = {
[1] = {
Head=false,
Neck=false,
Belt=false,
Ring1=false,
Ring2=false,
StepFunction = "Sequential",
KeyPress={
"/use [mod:alt] Drain Life",
"/castsequence reset=target/combat Immolate, null",
},
PreMacro={
"/targetenemy [noharm][dead]",
},
"/castsequence [nochanneling] Incinerate, Incinerate",
"/castsequence [nochanneling] Channel Demonfire, Incinerate, Immolate",
"/cast [nochanneling] Chaos Bolt",
"/cast [nochanneling] Dimensional Rift",
"/cast [nochanneling] Soul Harvest",
"/castsequence [nochanneling] Incinerate, Incinerate, Incinerate",
"/castsequence [nochanneling] Conflagrate, Incinerate, Chaos Bolt",
"/cast [nochanneling] Summon Doomguard",
"/cast [nochanneling] Grimoire: Imp",
"/castsequence [nochanneling] Conflagrate, Incinerate, Incinerate, Incinerate, Immolate",
PostMacro={
},
KeyRelease={
"/petattack",
},
},
},
}
AOE: infernal and rain of fire goes off at your cursor. This does use life tap to maintain mana, alt for drain life.
Sequences['FirelordAOE'] = {
-- This Sequence was exported from GSE 2.2.03.
Author="Incindium@Moon-Guard",
SpecID=267,
Talents = "1,1/2,1,3,1,2,2",
Help = [[Use with Soul of the Netherlord]],
Default=1,
MacroVersions = {
[1] = {
StepFunction = "Priority",
KeyPress={
"/use [mod:alt] Drain Life",
"/castsequence reset=target/combat Immolate, null",
},
PreMacro={
},
"/cast [@cursor] Rain of Fire",
"/cast Incinerate",
"/cast [@cursor] Rain of Fire",
"/cast Conflagrate",
"/cast [@cursor] Rain of Fire",
"/cast Channel Demonfire",
"/cast Dimensional Rift",
"/cast [@cursor] Summon Infernal(Guardian)",
"/cast [nochanneling] Grimoire: Imp",
"/castsequence [nochanneling] Immolate, Life Tap",
PostMacro={
},
KeyRelease={
},
},
},
}
