"So with Merasmus kicking the Soldier out he then finds a new home and by new I mean old and by old I mean the Capture point map Well. So Soldier accidentaly packed Merasmus's magic staff and now he's lose with it. Well why are you reading? go watch the video and find out what happens.
Link to Merasmus's staff http://gamebanana.com/tf2/skins/121576