Wow. I just read that spell. So I need some help understanding stacking CLs.
Build Stub: Spellthief 1/Wizard 7/Nar Demonbinder 1/Ultimate Magus 9
Master Spellthief lets your caster level in all arcane classes stack.
Nar Demonbinder put Holy Word on your spell list and sets your ND caster level eqaul to your ND level plus your level in any other class.
Ultimate Magus dual-advances both.
I have no idea what the result is.
Here's where I'm stuck (CL - Caster Lv, HL - cHaracter Lv, LL=cLass Lv)
HL 1 - Wiz CL 0 (Spellthief 1)
HL 2 - Wiz CL 1 (Wizard 1/Spellthief 1)
...
HL 6 - Wiz CL 6 (Master Spellthief Feat) (Wizard 5/Spellthief 1)
...
HL 8 - Wiz CL 8 (Wizard 7/Spellthief 1)
HL 9 -
(W 7 / ST 1 / Nar Demonbinder 1)
Nar Demonbinder CL = ND LL + Wiz LL. Wiz CL = Wiz LL. But then the feat says that caster levels stack, so Wiz CL = Wiz LL + ST LL + ND LL & ND CL = ND LL + Wiz LL + ST LL.
(So ND CL 9, Wiz CL 9?)
HL 10 -
(W 7 / ST 1 / ND 1 / UM 1)
Ultimate Magus adds 2 to the Wiz CL and 1 to the ND CL. But what does Master Spellthief do with that?