Monsters and Syndicate can go for a loyalty mechanism. I really like the idea but in fact, If you go for it you can't use any lock cards as there is no card in both factions with this ability. It makes them highly vulnerable for all "all in" strategies (ex. Kolgrim). I don't know if this is done "by design" but it would be nice to have at least one card with this ability to allow more flexible deck builds.