Originally Posted by DracoDei
Demented One's mechanic still allows for a discipline to be limited to specific classes, it just says how those classes get access to it, so that crusaders don't end up with too many options (since their lack of options is one of the things that balances them).
Hmm, that actually raises an issue I had not thought about. Although the discipline seems thematically ok for crusaders, it is a very flexible discipline (a lot of maneuvers and a lot of variation in the type of damage dealt). Is letting crusaders have access potentially wrecking their balance?