Sneaking Favored Soul

[Fisticuffs]

I was wondering if there was an easy way to sneak Favored Soul in to the War Weaver(HoB) prestige class, oddly enough I can't seem to find any.

[Cog]

War Weaver specifically advances only arcane casting. There are tricks to qualify as arcane casting, but none I'm aware of that actually make you an arcane caster when you aren't.

[Fisticuffs]

I remeber reading about a feat that let you prepare Divine spells as arcane spells and the other way around. :smallconfused:

[Cog]

Which would qualify you for "Ability to cast 3rd-level arcane spells." However, Favored Soul is still a divine class.

[Thurbane]

Which would qualify you for "Ability to cast 3rd-level arcane spells." However, Favored Soul is still a divine class.
Exactly - there's a few tricks to get a FS to cast arcane spells (Dragon's Blood Pool, Alternative Source Spell, Southern Magician etc.), but the underlying problem is that the 4/5 casting progression of War Weaver very specifically says "+1 level of existing arcane spellcasting class", so it wouldn't progress your FS casting. (Unless there's some op-trick I'm unaware of).