The two of them are in a cooperative relationship. Arthur killed and served as infantry while Thor served as the armored tank.
The two of them have serve different purposes and have different specialties, which is one of the reasons why Arthur was willing to work with Thor.
Thor provides something that he doesn't possess. This makes them better when they work together.
Arthur marched through the forest looking like a blue humanoid wolf. He had a white robe loosely draped around his shoulders.
There was a giant golden sword in his hand and a golden boy on his back. No beast could survive a single hit from him. That changed until they encountered their first rank 3 beast.
The rank 3 beast was a bull. It was leading a herd of cattle to escape from something. Arthur and Thor were in its way, so it rushed towards them to mow them down.
Arthur narrowed his eyes at the bull and said to Thor, "Watch and back me up if necessary."
