More than just a Wizard

Taken in by the Dursleys, Harry is abused heavily by his relatives. Six years later, Harry kills the Dursleys in a blood rage, and uses a dormant magical power within him. Found shortly after by a man who looks like his father, Harry is whisked away to an unknown area of Britain. If that's even where he is. Powerful! Harry. OCs! Tamer/Familiar Master! Harry.