Well, I can see some things in the character you might want to address.
1) The part about "All equipment is stolen and
changes randomly" do note that equipment matters, it doesn't change randomly and it will not change randomly. If this is what you have, it stays that way until you give us a reason why it's going to be lost or gained through the story. That's to be fair, as I've seen some arena-made characters that also have 'random equipment' that often pull literally anything they need out of nowhere. I'm not implying this is what you intend, still I must avoid this possibility.
2) The part about "left hook can knock anything in the world if applied properly", may want to be changed to something more detailed and give some reason why. Fair warning, there will be creatures, beings and characters that hooking cannot knock over - many of them. Reasonably.
3) "Jack of all trades", you've got to get rid of this. Explicitly saying that he's good with anything is basically saying he's good with everything, which is just not going to work as it is simply not viable and will be unfair to the other roleplayers if I allow it. It seems that he already has quite a few skills of his own in addition to that. Alternatively. List the things he is good and bad at.
4) The part about all his explosives. He is carrying 4, flintlocks, 1 blunderbuss, 1 mini crossbow, 1 axe, 1 cutlass, a number of throwing knives, a number of dynamites, a number of bombs and I pressume, enough ammunition to load them all at least once? Is that correct? We did say explosives are not exactly common in this day and age amongst other caveats. Tell us where he got all those and why he is carrying them on person? Also, how is he carrying all those around?
I know it might seem like he having alot ALOT of explosives and stuff should be entirely acceptable in the pressence of wizards who can summon fire and everything, however, magic use is strenuos - extremely so and I am keeping track of how much it has been used and trust me when I say, our local wizard is no walking bomb.
Basically, to be fair to all archetypes of characters, magic takes as much, if not more, effort than doing something by hand and more direct approaches. Which is why not everyone is a wizard and wizards cannot solve everything, heck they can't solve ALOT of things. A player may not want to explicitly show it in their posts, but I am watching and will let them know their reserves explicitly.
On the other hand, potions/explosives/items often take very little effort to use comparitively and can be spammed as long as they are in reach and have not run out - and are just as effective in their results. Limited only by their availability. Which is why I enquire about how your character has all that?
Combat is only a part of the game, a possibility amongst many. Do not worry about trying to be better than others at it right at the getgo, non-combat attributes are just as important. Example, cicero, a relatively non-op character, spouts of valor and honor with every opportunity he gets (so far), I intepret it as a niche of charisma that draws certain characters to him while repelling others and because of it. Had he chose to fight them as well when he met rakath, there will be less guards on him in civillized lands. He also managed to open up an opportunity on a vendor.
I gave him these opportunities because of his choices, roleplaying and background. Trust me when I say, all characters are equal when they start off. Characters too good in something will compensate in other areas, characters who have flaws or lacks will have more opportunities than characters who do not.
@Sol Grim