Harry Potter has lost all love for humanity until one day, a man from the future with strange powers and objects comes into his life and change him forever. HP/DG/FD/Multi, Assassin Harry, Hacker Harry, Powerful Harry, Canon Bashings, American/Irish OC, American HP. May be insulting to some, so read at your own risk. 1st fic, so sorry if not the best thing you have read.