Are the questions gonna be like "What's the price of Chaos Seed?" or something like that? I think I know the game very well comparatively, but there's no way I can remember all the trivial things like that. I really don't wish this to be a "who can look it up the fastest" contest.
It's called "trivia" for a reason; but no, none of that. Of course, all answers can be found by looking it up, but if you have a good knowledge of the game, you'll definitely be faster. Next to that, I might limit it to one answer per question per player, so lucky guesses are less likely.
Essence, do it like me: Get her to play Elements too!