Master4thWall
BRO!!!!!!!!!!!!!!!! I am late af but instead of Ope Ope no Mi he should eat , Zushi Zushi no Mi, which control gravity, so that he will have 2 of the 4 force of the universe D:!!!!!!!!!!!!!!!!!!!!!!!
As well as many other uses that i dont have the time to explain like armor making attacks and maybe just maybe wraping it around his endoskeleton for defence. Btw comment down below if you got the reference to that last one.
DaoistQnFzbe:Or he can just give him the the power to control iron sand. I mean like come on its kinda overpowered cause with enough time and in small enough doses he can just put iron sand in people orifices and eventually get it in there blood stream killing them or just rap it around a important organ and viola.