One thing that irked me when playing Arkham Horror TCG was location cards sliding and moving during play. Another issue was if there were attachements on the location (e.g. Fire! or any enamy). My design aims to solve them both. Every card holder can contain one location card (dragon shields fit inside exactly) and 3 slots for "addons" - one on each side and one on top. Card holders allow for connection from every side and available connectors include: -both ways -single way -diagonal