The author is running on the concept of “healing magic can do anything I want, so I can have a support class that people will underestimate, allowing me to be the underdog while still OP as fuck”.
@suzubelle basically his healing works by fucking with space-time. that means that he can turn back time on a thing and then introduce changes into it while winding time forward
it was explained in the first chapters, i have no idea why it's difficult for y'all to comprehend
yes i do understand that, i meant like for some normal series healing would normally like fix up wounds or something like that
his healing is just quite warped up by having that power evolved into something else that isn't healing anymore
You can rename heal of MC as Space time alteration power. And he only use it as restricted scope transmutation thing as heal and corrupt (accelerate time in part of the cells and not others mean necrosis and disintegration).