1 magic outside of battles: how this would work is when you press a button (mabye on the mouse) what would happen is you would cast a spell depending on your school, for example if you were fire you cast a flame or flair and the item you cast it on will react like a box would burn and get destroyed.
2 jumping: ok, you might have noticed KI made the jump higher i don't see a point in it because it does nothing. So mabye your wizard shold be able to jump onto and over stuff. Also what would be cool is if you jumped into a pit of darkness or something like that you would teleport back to were you jumped from. Another thing is if theres a short ledge, you could mabye climb over it, You would put your hands on the ledge and pull your self up. also if are walking of a ledge you would hop down.