Thread:XYZ1015/@comment-26514235-20160415081624/@comment-26514235-20160417173622

In response to your first question, a good way to test magic power is either self scanning or practising with a psi wheel (you can find info on those on this wiki) but I would say the best way is just to try a basic spell and see how effective it is.

As for the second question: in its base form, it protects the user from ALL magical energy but there are easy spells to transform the alluminium into a form of magickal filter that can reflect certain spells