"Everyone knows that there's gain profit from colonizing the beautiful untapped wildernesses, stealing the land from its original inhabitants, and then diwying it up among victors of an arbitrary war so they can exploit its resources! I just wanted to make sure I was first in line when the maps get drawn." (#291)
He is a merchant, although his shop items are unknown at the time (they could be the same as in the game or have different items), we do know he would sell and take anything, because when Tyrone died in the explosion made by the Demolitionist's dynamite he said:
"Does anyone know who that guy was? And will anyone care if I take his gold chain?" (#292)
Later he took the chain while everyone was still shocked that people keep dying left, right and center. The merchant also sold Maxx's vilagee to smurg and the rest of the goblins.