I have a friend that purchased Diablo 3, played it, finished it, and doesn't care to play with others. He is no longer interested in the game.
Now he is willing to sell me his copy for a fraction of the price.
From browsing the web a little bit, something tells me I won't be able to use his key since it is already linked to his Battle.net account.
Is there any way I would be able to use his key legally? Would contacting Blizzard help, provided my friend e-mails them asking them to transfer his Diablo 3 License to another Battle.net account?