To End The Moonlit World

A man was sent to a world with only one goal, to end this never ending age of gods and bring forth the age of mankind. He only had one request and that was to have to the power to actually end it. Now after months of planning and sadly merging with Gilgamesh(Caster version but with a bit of archer character) he's ready to make his debut.

A/N: So our MC is going to look like Caster Gil and have his less arrogant personality but he will have months of his archer arrogance. Also there's going to be a "Prologue" of sorts. The prologue will sort of be a tiny glimpse at what he was like before he really took up the personality of Gilgamesh but it'll be the caster Gilgamesh so it will be arrogant but not as bad as archer was in UBW.then we'll jump into the first chapter which is already a ways into the actually story(Excalibur arc)