1 might work (though it'd help little, Mahito's touching them silly. though, it'd hardly matter since they're so much stronger than him), 2 might work, 3 I already a thing, A normal knife wouldn't harm her cuz of "invulnerability" tho I'm not convinced she would, I kinda do believe this one but (should Hellaverse ever get a page like Ki manipulation) Goeita Magic would have it's own section, oh boy, here we go Powerscaling mind says no due vagueness but I do think it would make sense in story, Hell to earth or heaven to earth definatelly a universe, heaven to hell is where things get wonky with WOG directly stated they treat the two to each other like planets