my mistake. not Magus of the Scroll, THIS is the worst Magus. Mind you, when the worst of a 15 card mega cycle is equal to the best Chancellor of New Phyrexia, that's a pretty good sign you're playing with Power.

Are we really arguing over sportsmanlike or not? -_-

In my opinion, while it IS the right thing to remind your opponents of the Triggers, it is NOT the right thing to try to Officially Enforce this in the Rule Book. In fact I find making it THE RULE pretty much removes everything I liked before about when people did it because it was the right thing.