Academy (Hafiz) versus Ranger (Ossir)

Ossir will clearly win this battle, IMHO. The map doesn't allow for a quick rush with Hafiz, and in a long game, Ossir will simply overwhelm the gremlins and the rest of the mage's army with his initiative and archers. However, if it comes down to both using their ultimate abilities, then it's debatable. With the mage, you can cast Enslave and Berserk on Ossir's warriors and then finish off the rest, but for that, you'll still need minor artifacts. P.S. It would probably be easier for Oroy to defeat Ossir.