House Of Judgment was the justice system of Riis, houses brought their criminals to the house of judgment, to be judged obviously, and I think they also settled disputes Variks said he was Kell because he was the last of the house, but didn't mean he had access to industrial levels of Ether, plus making him as big as most Kells would be hard to incorporate into the story, our guardian would be having a conversation with someone 20 feat taller than them