I don't find much value in using Academy cards in my Arena games. Since Academy is simply a 'close in' single zone battle the cards are all designed for that type of battle. When you add them to Arena style play I find it over emphasizes the single zone combat nature of an Arena match. For example, there is no move action in Academy so spells that change movement effects are not included in Academy products.
I will say that I am likely in the minority on this view so YMMV.