I have no idea what I'm doing

[DGDobrev]

In that case, I can only conclude that your own tactics are at fault. With what I gave you, I can beat up impossible with a mage and have a fairly challenging game. But normal... it's really easy.

The last tip I can give you is to find good spots where you can do the fight at your advantage. Another thing you can do is to have Zerock and Glot available for these battles. The two spirits of rage will be very useful for some extra damage or diversion.