theory crafting:
This build takes advantage of the tier5 enhancement tree in archmage with arcane supremacy and master of knowledge, but its based off of immolation. (Which is in the fire savant tree which deals up to 20d6 burning damage on each fire damage spell) 
And the fvs is just for increased spell crit chance and more spell points.


12sorcerer/5wiz/3fvs

Str : 8
dex: 6
con: 20 (level ups here)
Intel: 16
wis: 6
Cha: 16 (14 if 32 point build)

Order of classes doesn't matter, as long as you take advantage of the extra wizard feats properly (Mental toughnessess/metas)

Feat progression:
1: Maximize
3: Empower
6: Quicken
9: Completionist/Toughness/wizard past life
12: Insightful reflexes
15: Force of personality
18: Adamantine armor
Extra Wiz feat 1: Mental toughness
Feat 2: Improved mental toughness

Epic feats: 21,24,27,30
21: Wellspring of power
24: Master of knowledge
27:Ruin
30: Greater Ruin

ED feats: 26,28,29
26: arcane pulse
28: Spell power focus: Fire
29: Hellball (Its a personal preference, this or Guardian angel, or epic spell focus: repair )

Legendary feats:
30: Scion of the plane of fire

Warforged/Bladeforged
Enhancement breakdown:
Archmage (35) for arcane supremacy and arcane blast
Fire savant (23) for immolation+fire crit IV
Favored soul (12) T3 smiting (spell crit)

Last 10 points dont matter that much, but you can take more efficient metamagics, or even go bladeforged and get
a 2nd reconstruct for more survivability. (if you wanna pay for a heart of wood)

Damage of immolation breakdown:
20d6 fire damage>[(20+120)/2]=most probable number is 70
Assuming 900 spell power (which will increase while fully stacked but I wont include it for this calculation)
70x10=700 base damage
Now the crits
6% from fvs
4% from archmage
8% from fire savant
5% from magical training
3% from all the mental toughness feats
9% from the energy criticals epic past life feat
29% from burnscar sash
10% from empyrean magic
10% exceptional from revalia
5% insight from golden orb

89% spell crit chance

Assuming only 100% crit damage=1400
1400x.89=1246
700x.11=77
1246+77=1323 MPN

But with the legendary greensteel, arcance supremacy, master of knowledge, it goes up quite a bit.
As far as I know, the critical damage multipliers stack multiplicitively (since I have not made this build yet so dont judge me )
Legendary green steel=1.2x1.1x1.05=1.386
Master of knowledge=1.6
Arcane supremacy=2.0
Scion of the plane of fire=1.2
Night horrors buff=1.25
Wellspring of power=1.2
Red fens spell crit multiplier=1.5 (I don't think the spell crit chance stacks, needs testing)
base crit=2.0
All multiplied=23.95008 (Unsure if rounding counts, will include vulnerability in the end)
700x23.95008  =16,765
over 100% chance to crit even while arcane supremacy is active soooo
16,765x1.00=16,765
700x.00=0
16,765+0=16,765 if 20 stacks of vulnerability=20,118

all multiplied except night horrors,arcane supremacy, and wellspring of power=7.98336

So now the new, more consistent calculation
700x  7.98336   =  5,588
   5,588   x.89=  4,973
700x.11=77
77+4973=5050 MPN (before vulnerability)

Scorching ray breakdown:
(4d3+12) per ray, looks like it is always capped at 3 sadly.
MPN is 20 for the base spell damage, and still assuming 900 fire spell power: 200 per ray.
Sooo with a 23.95008 multiplier it gets nice
4,790 per ray.  X3=14,370

But with  7.98336  multiplier=1,596   
1,596x.89=1420
200x.11= 22
1420+22=1442 Most probable number.  1442x3 = 4,326
Per scorching ray spell cast.

So combined with the mpn with immolation, with all  buffs 20,118 + 14,370 =  34,488

And without
5,050 + 4,326 = 9,376




I forgot to mention but immolation triggers every 2 seconds and each time it is reapplied the damage immediantly goes off.

Rotating this with magic missiles, scorching ray, greater ruin, ruin, hellball, energy burst, master of knowledge stackers. it'd seem like a nice dps build.  (but obviously more geared for single target dps)

EDIT: fixed multipliers

Rubbinns wrote on Jan 15^th, 2018 at 12:10am:


Shit you're right.  Guess that means you shouldn't go warforged then.

froggy wrote on Jan 15^th, 2018 at 1:54am:

the docent is is also 10%. I have the scepter and the robes as well, and they all stack atm. my shiradi goes from 66% fire to 86% with scepter buff.

Vendui wrote on Jan 15^th, 2018 at 5:35am:



Vendui wrote on Jan 15^th, 2018 at 5:35am:

yes

SpaceGoat wrote on Jan 15^th, 2018 at 5:35pm:

scorching ray

I like the innovations, but something like ruin Kong might be better since so much of your dps comes from immolation which is hard for you to stack. You’ll need the fire cloud spell too

SpaceGoat wrote on Jan 15^th, 2018 at 9:24pm:

1.5 second cooldown

froggy wrote on Jan 16^th, 2018 at 2:09am:


Didn’t one of posters above say it removes the taxis when it ticks?

But yeah, if yor main focus is immolation it won’t wkrk as well. You’re be better off without 12 sorc

SpaceGoat wrote on Jan 16^th, 2018 at 12:10pm:


favored soul blade barrier splash?  lol.
and yes, it takes ruin and greater ruin.  So you'll still get good juicy ruins.

Running a fire sorc right now for fun.  Unfortunately scorching ray ony adds one stack of immolation.  As a matter of fact every fire spell only adds one stack including if they take multiple tics of dmg from firewall.

Despite this, I still like immolation and fire sorc in general.  The dmg is pretty dang good and the new changes to awaken elemental weakness (or whatever it's called) have made it much less punishing to be a fire specialist since you can now take away fire immunity.

With sla fireball/fireball/scorch/fireball/scorching ray/burning hands/et cetera you can add about 2 stacks a second of immolation. I rarely even get it up to 20 stacks as bosses have already melted.