Ok, so... where to begin.
After a few years of hopping over to the 5e train, I was invited to go join my old pathfinder group I used to run while I'm back for about a month over the holidays. My DM is a good friend and used to be one of my regular players. He's the kind of guy who would show up to the table having taken a week-long Adderal fueled SRD dive and have some sort insane paladin/synthesist or magus/swashbuckler explosive crit combo character and break the game 5 ways from here to sunday.
It's not like he runs his games much differently than that though. He's allowed all 3rd party on the SRD. Let me repeat: All. 3rd. Party. That means feats, classes, races. Everything. Monster feats too. Worth mentioning that Power Attack and Combat Reflexes are just free feats every character gets. He's also allowing prestige classes to no longer be gated by the skill rank requirements, though all the other prerequisites are necessary. Also just the cherry on the top: everyone just gets a free +2 to one ability score.
So, it's been a few years since I've played pathfinder 1e, I've unlearned some of the rules. Given what I've told yall, how do you think I should proceed in starting the nuclear arms race that will be my character?
We're level 4, and I already rolled up my stats. They're pretty solid:
17, 17, 14, 12, 12, 12
Edit: As an aside, he's been actively challenging players to show up with broken characters, especially me, so I'm not actually working against the spirit of this game if it wasn't clear by the insanity of character creation.