The boons MC got or you can say cheat:~
Abilities similar to Shiba Tatsuya, mc of Irregular of magic highschool, though he will have to work on it. This is result of the energies that now are inside his body , changeing and strengthening it as well as the third eye. Which are-
Regrowth
Decomposition
Elemental sight
Third eye-???
All his abilities are tied to his physical strength so the stronger he becomes, his abilities also grow with him, like if he ate Thunder fruit, it will break the limit of its world if he is strong enough.
Insane luck boost. Always helps in most critical moments.
High intelligence, like reaching 1/4th the level of Rick in Rick&Morty show in both science as well as evengy manipulation(creating techniques from chakra, magic, chi , aura etc.) [Can grow in the future, as we all know it's just to explain all the bullsh*t I am gonna make him do.]
His Mangekyo got strengthened, so it will not longer go blind and will continue to strengthen as his strength improves.
The eye technique are:-
1}Ame-no-Minakanushi- Passive effect:- Searches for worlds he can travel to.
Active effect:- Can open gates to other worlds to which he has co-ordinates on and can also open permanent gates and leave them open until he wants to close them with almost no cost. He can also add space energy to his attacks so it's like sending space slashes.
2)Ashura:- Can usurp anything from the person it is used on and make it his own. But, either the person has to be weaker than the user, or incapable of struggling like if the opponent faints or is caught under illusion.
And at last, The memory of entertainment shows and other stuff a medical student has watched.