I don't want to be that guy, but for the future, labelling these as Hak test would help the devs scan through this better as priority - as for the casted endlessly songs, I believe that's intentional. Curse Song is hardcoded to have a cast time, while new feats do not have to take up on this. You'll notice most class abilities on PotM don't have a cast time, if it can be helped (Barb Rage, Divine Might/Shield, etc).