The House of the Forsaken replaced the failed Order of Ixion with the cyborg commandos of the Gendarme Maschina
A low end private security force, the Order of Ixium operated as the enforcers and henchmen of the House of the Forsaken
A culture must hide its hands in the arm of their clothing as a sign of respect and peace. When approaching somebody you show them respect by crossing your arms and hiding the hands in the shirt sleeves. Nobody worries about hidden knives and such, it is the threat of magic that this custom was created to prevent.