Harry Potter and the Black Knight

Harry wakes up one morning to a strange phenomenon, giving him a gift. He receives his Inheritance, gains massive power, and becomes the Lightning One that prophecy foretold. A dragon, a Veela, a Vampire, Assassin's Creed, and others besides. Kudos if you can spot them all! / Oh, and there WILL be an attempt at lemon(s)! Expect coarse language and suggestive!Harry.