Hmm, honestly Harpie's support is lack-luster, as your will end up feeding off of Wind support in the end. My only suggestions are to maximize field control and minimize the amount of plays they can get off. Find where you deck is strongest. Maybe try Harpies and blackwings? Or possibly REDMD with Harpie's Pet Dragon? Again not sure if it will work, but I'm always willing to help out.