Advice though, don't make him a powerful being just make him a reincarnated human with no memories and with op powers and make him go to an AU so no one can complain...
As for review, I usually give them after more than 20 chapters so that I can make some fair judgement. This is so that Idonât jump to conclusion quickly
he should not accepted reasons he could win the whole war with a snap of he's fingers nad you know how that ends(fate/staynight(unlimited blade works) You guys get what i mean?) and there would be no fun with out struggle.