Delirium could be more utilized if we had the ability to make Dark Arts add a different effect to it, without making it some kind of crazy OP skill like most people want? Just something to discuss. IDK if I have any ideas as to what it may be instead, but I was thinking something similar to Storm's Path (10% global damage reduction from the target) for the same duration as the INT down currently is (20sec). Give it a risk/reward for more actively managing your MP through DA usage. About the only major change I would want to the class.