Our DM appears to want to run the campaign beyond level 20, so

>>50787544
Depends on your build. I'd take a look at that CHA Magus archetype. As shit as it is, you already at level 20 anyway.

>>50787705
Optimization is unimportant, I'm more interested in making it fun.
Already trying to emulate Artorias's fighting style because I'm an edgy autist.

>>50787544
You could just continue in bloodrager you know.

You would get 5th level spells that way, and you would accumulate more potency in any power or ability that has a flat increase rate and doesn't have the words "maximum of +X".

>>50788130
This would mean:
>DR increases at level 23, 26, etc.
>Bloodline Feat at 21, 24, 27

As far as spells, the way it works is he would gain his sixth 4th level spell at 21, at 22 he would gain his first 5th level spell, gain another at 22, another at 23, then he would gain 6th level spells, and the increases follow the previous pattern of spells.This also includes the spells known pattern.

Yes this means your GM might have to help you develop a spell list.

Sorcerer, obviously.

wizard with a focus on transmutation school