Zeniel

Wouldn't Pain be able to copy it with Asura Path?..

Problem is that in actuality value of stats flactuates and their 'density' scales with his level. So level 11 Jin-woo with ~50 strength is times physically stronger than level 1 Jin-woo with ~40 strength despite difference being only 10 points. I think increase in all characteristics by 1 with each level-up is actually made to mask it, but I'm not sure.

It turned body of E-rank into strong enough to be avatar of concept of Death of that particular universe...

Don't do it! Cola have a bunch of caffeine, which acts like poison/alcohol to spiders! You don't know what you are about to unleash!

He wouldn't be able to pull out reality marble without the card inside if his origin wasn't "Sword". Moreover, I think he pretty much admitted it in his speech in final battle of Oath Under Snow, that card had rewritten him.

Witch(nasuverse)? Original First True Magician was a witch and First True Magic overall is connected to witches.

There is no control in original four horseman? There are supposed to be War, Famine, Plague and Death.

Animeman isn't a foreigner, though...

Yes, there were other dust companies and shops amd ues, I am pretty sure it is canon that he forcibly closed down the competition... But the thing about him being a single responsible for the lack of alternative resources is a complete rubbish. It is not a problem of a single generation, no matter how young Remnant's modern civilisations is.

No, it's not. They were just created by some divine tree from some closed off dimension(which authors based on Alice in Wonderland), which let them roam free outside world after they overgrown governing this dimension. Though, I am not sure that it was known when this chapter was made.