Well, it would be a very intense fight, Mario having fireballs, being able to fly, making himself to metal, breathing underwater and many more imba stuff...Mario is a handyman.
While Dante would have his demonic powers/immortality But we all know Bowser is immortal aswell and Mario(immortal himself) deals with him every time...
So after a very prolonged moment of thought, Sephiroth FTW.







