So a viable solution would be: A class that already has spontaneous arcane casting in armor. OR a way to avoid the armor spell failure on a class with spontaneous arcane casting. OR a way to gain spontaneous arcane casting on a class that can already ignore the armor spell failure penalty, but has to prepare their spells in advance.
How to reduce Arcane failure chance in Pathfinder?
Not including 3.5-only ways of reducing ASF (and boy there’s a lot of those), here are the vanilla Pathfinder options for giving you a lower Arcane Spell Failure chance: Not really a gish, but bards can cast spells in light armor and with shields without incurring ASF.
When do you have a chance of spell failure?
Arcane — but not divine — spellcasters receive a chance of spell failure when wearing armor or wielding a shield that has a (percent) value for arcane spell failure.
Is there a way to avoid the armor spell failure penalty?
OR a way to avoid the armor spell failure on a class with spontaneous arcane casting. OR a way to gain spontaneous arcane casting on a class that can already ignore the armor spell failure penalty, but has to prepare their spells in advance. It seems like the Eldritch Scion Magus archetype is what you’re looking for.
How should I handle arcane spell failure from armor in Pathfinder?
Since I expect to be spending more time in melee than most spellcasters, I want to have pretty good AC, but the armor I have now (studded leather) has a 15% arcane spell failure chance. I checked out this question, but most of it only applies to 3.5, and I’m playing pathfinder. How should I deal with arcane spell failure from armor in Pathfinder?
What can you do with arcanist in Pathfinder?
Blue: Fantastic options, often essential to the function of your character. The Arcanist is a fantastic new take of Arcane spellcasting. Arcanists prepare spells at the beginning of the day like a Wizard, then cast spells using daily slots like a Sorcerer.