So I've been allowed to recreate my character after a lull in the campaign. I have been playing a sorcerer and I didn't much enjoy playing a blaster/party face. I saw a couple of shape changing sorcerer builds and found them interesting, Crossblooded/Wild Blooded Aberrant/Abyssal Sorcerer, but my GM shot them down for predicting they'd be too broken for the game, which I somewhat agree with. I did try to convince him I'd play him exactly what I want, a Herald of Cthulhu. Shape changing into tentacled monstrosities, casting mind affecting spells, just overall spreading the insanity madness.
Does anyone know how else I can achieve this? Please don't say druid, I despise playing druids