Not sure which type of Naganadel is worse. (If this will be an alt. type.) Dragon means you will most likely never OHKO anything as you lose the ability to hit for weakness and you lose the benefit of being a 1 energy attacker against stuff like Gardevoir.
With the psychic type you can OHKO some stuff but will easily get wrecked by Malamar. I guess you can add both types, but I have more or less given up on this card ever becoming good. I don't even think anymore that rotation will help Beast Box that much, unless Blacephalon will be crazy good.