Yeah, the fight was anything but tactical unfortunately.
That said, what I didnt realize at first is:
Your movement speed is depending on your characters health or stamina.
You can actually attack when moving. But you have to click on the enemy right away.
One of your dudes has ranged attacks, the other can cast.
And with that this corner example shouldnt actually happen. With your spells you can turn him into dust in turn 1.