Well, in any case, you cannot miss on the skull. When I take it (if I get it), I will also use it all the time. No mage can miss out on +5 intellect.
BTW, here's a fun save. The task is to beat up the droid army without a loss, ending with full rage and mana, while popping up all 3 chests on the battlefield and getting at least 1 point to the Trapper medal counter
It's not that hard at all
I also fixed the values in the previous post. I kinda got a little bit ahead of myself there.