mc should eat devil fruit. his attacks is not much destructive like other yonko . if he only relies on his stupid body I'm sure he cant kill big mom or kaido
there's no lieutenant general level on mc crew?? how stupid mc is? he's already famous why not recruit some strong people. he can literally take advantage of his future knowledge so he can recruit some powerful crew members. because it's really not good that he still need to wait for his sons and daughter to grow up.
that's not the mc summoning magic and the mc summoning magic is some brainless skeleton and it can only summon 2 even ordinary people can destroy those useless summon. and overlord summons is really not that strong