[@Kazemitsu]

so far everything's fine-ish, with exception to the boost magic. As defined this would be an alteration magic but he can't cast white magic being cursed as a skinwalker. If it was imbued to an item instead that could work. Alternatively if you were to use the invocation version, transmutation, you can use it to say change his physical biology to increase muscle mass and such for the slight edge? But it would only effect power in that example. 

However if he's using his own mana to cast a spell and not something bound to an object, he'll still need three sources of elements to cast a transmutation/alteration spell. In both cases they require Earth Fire and Spirit. Since he's only magician rank, he wouldn't have a second element. So in addition to listing what his primary element is the other two sources would have to come from a catalyst and a familiar.