Ever since the 3.0 update, the Firstborn and Chosen faction has been losing badly to the Mountain Clans and Forsaken in arena 5v5. I believe the main reason for this is the warlock. It has an area of effect stun that if you max it, it could last until it's a 5v3 game. Second, I think that different classes should move at a different pace than other ones. Although it may further complicate the game, I think arena is far too bland right now. Mages, rangers, warlocks, and rouges should move faster than the others, since they have light armor and some of them are built for kiting. Tanks such as bladedancers, barbarians, paladins, and deathknights should move slower, and to make them a bit stronger for that, buff their gapclosers and stuns. For druids, and maybe some other classes (I don't know many of them) spell animations get in the way of the game. Sometimes, I'd rather not heal my allies because it takes time for my spell animations for healing to finish, but leave some spell animations there. This makes the support aspect of the druids greatly worse. I feel this is a great way to buff the druids, one of the weakest classes in arena.