How would your OC pit against him?! Description in body!

Bloodstrike! He's something called a being-killer. That means when he would kill someone their minds become completely trapped in their bodies. He's a world class swordsman, marksman, martial artist and hand to hand combatant. As well as a world-class mercenary hitman assassin bounty hunter spy thief.

His healing abilities allow him to heal from anything but only after that object/person/thing gets done hurting him and prevents him from feeling pain at all.

He has cartoon space, meaning he can pull out random weapons from nowhere; however he can't control what he pulls, however he can control the TYPE of item he pulls out

Instead of being able to talk to the audience by breaking the fourth wall, he can do it by reading the text or watching what he is in and act accordingly, however he can't really change the plot but he can jump around in it and whatnot.

Omniannoyance: he also has the ability to eventually annoy anyone or anything to various extents, and he has no problem playing or fighting dirty, and he never takes anything seriously and never stops talking about things completely unrelated to whatever is currently happening. And it's said he's impossible to offend!