School started again and stuffs got a bit of hectic, but I eventually got time to work on this a bit more. Still trying to stop myself from over detailing sketches, doesn't seem to be successful. Ended up spending way more times than I expect. But I think I finally got the idea I want.
Since the design itself was immobile and wasn't make to do much other than being intimidating and huge. There isn't much I could do to create a dynamic attacking pose and defending pose of some sort. So instead of just crushing people with its weight, I decided to go a bit off to the magical route. Since it saps magic out of the earth, at first I was thinking of a giant laser beam. However, later on, I kind of remember it is a geomancy bug that creat it's pupa/cocoon out of the earth. And that's basically what I did and it was the one that sticks to my mind the most.