Forum:Question about Patrician of Darkness

In a duel I had with a friend today, I attacked one of his cards on the field with my Slifer the Sky Dragon and with his Patrician of Darkness he differed the attack to one of the guys I had on my side of the field. We had a disagreement over if pat could defer attacks on other cards on his side of the field. If so, can he defer it to an opponent's card?? Until I was able to post on here, We decided that the game would go on as it was before the attack and we would play as if pat couldn't defer attacks directed at another card. I then beat him by attacking a low ATK monster with my Slifer. So, the winner of the duel is in question because if if pat could defer to another card on an opponent's side of the field the defoset would have put my lifepoints down to 0.