Gotcha, I misinterpreted "MP refreshing statuses have no effect" as you couldn't regen MP at all so I thought maybe you had to flip it off occasionally.

To my original point though, I think it could be interesting to make Darkside something that increases your damage for a short amount of time and you have to figure out how to best take advantage of it. Can't say what it would look like exactly or if it would necessarily be better than just keeping Darkside as a maintenance buff but it'd be an option.