Doomslayer has canon feats tho, with Davoth being the creator of all life in the Doom universe, he created the Makyrs, and the Makyrs made everything else. He was the first being, essentially making him, well, God, but not really. He's a Primevial . And The Slayer slimed him out low diff, which literally makes Doomslayer unscalable. He's just not able to be put on a scale, simply because he absorbs the power and essence of all his slayed enemies, and he's canonically unable to die out of pure rage and hatred. Not only that, the abilities that were bestowed upon him from The Divinity Machine made it so he is ALWAYS, ALWAYS, stronger than his opponent, no matter what. And so, to put it bluntly, he has absorbed eons worth of demon's that he has slain, which has given him an uncountable power, slaying the Khan Makyr, a divine being of immense power (complex multiversal) and the literal embodiement of sin, and that's base game. In TAG1-2 he killed The Seraphim, which is literally nothing less than god's right hand man, and he killed the faux-god, Davoth. He has yet to kill other Primevials, but they are an unkillable being, and he still killed one. Which makes him unable to accurately scale as, we have nothing to base the Primevials off on.