[AreaOfEffect]

The guide to the game explains the exact mechanics of Mage Duel. It's the astral level of your mage plus 1d6 versus the other mage's astral level plus 1d6. The difference between your mage's adtral level and the others were only 2, meaning your random die roll had to be above the opponents roll by 3 for 3 of those rolls.

Granted the chances of that happening out of only 4 attempts is low (1out of 54 to be exact), it still is possible. In fact, the law of averages demands that it happen when done in enough iterations.

My personal opinion is that luck certainly had something to do with it, just not the sort of luck you are referring to.

P.S.: Your odds of taking out one of his mages wasn't really that bad. He had only a 4 out of 9 chance of clean sweep. That means that 5 out of 9 times he would lose or tie to you at least once.