I havent played with the lone wolf talent and i like having a 4 man party. For that i have a warrior a rogue a hunter and red prince as a pyro. So far in normal diffuculty i can handle myself and fights are normal. Pyro has so much damage that i usually teleport a melee opponent far from the group then i slow him and within 2 turns he is dead. With just 2 characters and lone wolf i find it way too hard (at least in my mind) to be able to do both magic and physical damage so you can kill something.
As mentioned previously , in a 4 man party its easier to have 2 physical damage dealers and 2 magic ones.
