User blog comment:Imouto-tan/Destiny Military Academy/@comment-4867780-20151228113143/@comment-26362471-20151229232242

Yes, in short that's what Spell Artes are in short.

No, anything can use Spell Artes and Jewels are just very talented and don't actually need grimoires to use Spell Artes. Fullbrings take the place of specialized abilities.