Harry Potter jam tonight.
Deus Ex Machina
When you duel a wizard that is a gazillion levels stronger than you, roll +luck
On 10+ A previously completely unknown magical effect saves your backside and your opponent is almost killed.
On 7-9 A previously completely unknown magical effect saves your backside.
On 6- A previously completely unknown magical effect saves your backside and a major character dies. (Not you)
Oh I found this to be quite amusing. Well played, Sir.