If i buy a sword does it come sharpened or do i have to pay more money to get it sharpened?

This depends. Usually when you're buying or looking at swords online(I ume you will be) the website usually says whether the sword comes sharpened or not. High end, collector/usable swords come sharpened, as do usuable, reliable "hackers"(swords you can go out and slice up cans and melons with easily.) But, some of the really really detailed and expensive swords may not come with and edge because they are for show only. Just look for the website to say if the sword comes sharpened. If it does not come with an edge, the website may say if the weapon is meant to be sharpened or not.