GS was at least level 6, no higher than level 8, which isn't very impressive all things considered. But the racist axe was obviously magical it was glowing.

Actually for world building details, I was looking at the picture of brassmoon
http://www.goblinscomic.org/09102006/

and I was wondering about how the city looks really out of proportion to the people, and I had two theories.

First, maybe the city was build by giants or something else, and humans just took it over. It would explain how despite how big the walls were, large chunks of the city seem to be deserted.

The second possibility is that the giant empty square in the middle was part of the city that was destroyed during the orc invasion and they hadn't gotten around to repairing it.