well considering that one of the things at the core of the complaint is number crunching and that people want Oliver Queen to beat Thanos (I'm totally aware they are not from the same company), I don't see a problem with this devolving in to a competition of the most broken yet cost efficient item contest, we've all but turned a roleplaying game into a math class anyways.
like I said it's In the rules, since 3pp seems to not ever be considered when it comes to bringing balance, and everything has to be standard pathfinder, I used what was strictly hardcover paizo stuff, within the parameters CWheezy mentioned, you know letter of the law rather than spirit of the law
no one said it had to be a fighter per say, just a martial, also I figured I'd use gunslinger because they're just better at hitting the target when within 100 feet (mage armor and shield become useless because the revolver goes straight for the touch AC), the gunslinger's DEX is more useful as well, because it's used for AC and damage, and since we're in an arena, I lose the element of surprise (for example attacking a target in their sleep with a scythe), so I figured "an assassin doesn't get to stab you in your sleep, well then no magic for you" considering magic can't be casted in to the AM-field, and if the mage wants to melee he has to deal with the Full BAB and a 15-20 crit range (25%).
also, which guy? my guy?
since this is an arena fight not an assassination i went with a more straight foward approach, and while not designed for ASSASSINATING spell casters it can deal with most magical enemies in general. not time for fancy tricks out in the open, and no allies, so i went with taking the easy way out/ the no fun way.
lvl 10 HUMAN GUNSLINGER (vanillia)
HP 149 (89 (1d10 rolled 10 times)+ 4(CON) x 10(LV)
**missing anti-magic field
was working on a more complicated character but I figured "eh why make'em wait?", so I went with an old trick I learned from a game with a child king in one of the campaigns I played in. PC'S hate anti-magic field, which eventually team-mage killer got their hands on a formula for anti-magic pills which were way harder to get ahold of cause our one good ally kept making us do charity work, but hey I've got 62,000 GP to spend.
Grenades do at most 3d6 damage (which scales into worthlessness) and explode after 1d3 rounds. It's trivial to just walk 10 feet away from them while they're sitting on the ground and be totally unaffected, too, since you get at least a full round of actions before they explode.
stuff a bunch in a crate, get your most annoying rouge to act as bait, whip out your green arrow style alchemist fire arrow and set it off. But apparently only mages are allowed to get creative.
And, considering this debate is as old as third edition, with people that understand math on one side, and people that play NPCs like parodies of Bond villains on the other side (that is, dumb), why not just keep lobbing grenades?
grenades work wonders on unsuspecting mages, but even better is a back pack full of grenades and alchemist fire.
also with my tendency to be a bit on the chaotic stupid side I do enjoy sticking explosives on the enemies. honestly it just seems like there should be more thought put into peoples martial build.
and if your D/GM is cool with it there are plenty of cool 3rd party things.
then as mentioned before the is the mixed character.
my current character (a new campaign) is a level 1 wizard (fire elementalist)/ level 4 fighter, with a (super) meat cleaver (using the rules from the weapon master handbook) with a fire version of the ray of frost cantrip, and a couple of 3rd party feats, that let me set multiple people on fire with that cantrip, most characters catch on fire if you build your character right. and since my int is high I'm going to become a duelist and get the monkey style feat.
or you could get gud.
and a melee character with the disruptive feats and an 18-20 crit range + improved critical makes a great mage killer, especially as a rouge, we were part of a four man group, imaginatively called team mage-killer, and if you couldn't guess we killed lots of mages, who would sometimes for groups of mages higher leveled than us and would hut us down. 2 fighters and 2 rouges vs a sorcerer and 4 wizards, the mages lost most of their faces an limbs before casting a spell.
mind you we went based strictly on the rules in the book so when a stat got ridiculous we used it anyways, so even if it wasn't "realistic" if the dice said it happened, it happened.
dude you need to grow more arms and grab more lances, and get some insect looking armor for you and your horse, and give all your lances flaming.
but really I see no reason you can't, you can hold the lance in one hand while mounted, right? clearly you are strong enough to do it in one hand why not the other, your horse is doing most of the work anyways. if I pick up a 50 lbs. weight can I not lift another 50 lbs. weight? can I suddenly not ride a horse?
bro clones are better you don't look like a monster and you can be young again or change what you look like