To me, there aren't that many stand out cards in the theme decks. Bubble Coat is quite nice, a one time effect of stopping weakness is certainly something to think about, though Blastoise {d} (CG) is the (better) alternative in decks that run Rare Candy. Buck's Training is still quite nice, even if it only adds 10 damage. Quite nice late on. Gliscor Lv.X is still nice. Lucario is probably the best card in the theme decks to me. Focus Blast is a nice sniping attack, and Spike Lariat is a nice finishing attack. This would probably work quite well with the DP Lucario.
Oh, and your right, that Misdreavus is dreadful.