itch.io

Spellcasting is based on timing only. Wait until the magical symbol is filled up, and then click. Wait too long, and the symbol resets again and you get a low score. Clicking a split second before the symbol is filled up completely works best for me.

As far as I can tell, tracing the symbol as quickly and as accurately as you can is used for the entrance exam only. It's a shame, because I think that's actually a cool little mini-game and more interesting than the timing based one.