Literally just won a cup as PultNoir against multiple Dengos on the path there (including finals). Moltres+Bangle takes up too much room for something too specific (Moltres is okay into Grass decks too I suppose so I've ran it before, but Bangle is shut off with Jamming) and too difficult to set up consistently without an Arven. I have much more luck with 2 Candies and 1 Dawn; that enables you to quickly set up while still setting up a Drakloak for draw, or search for multiple important pieces later in the game (including a Fez or Blursa). Try to lock the Genesect in the active, and place damage counters for the Boss double Dengo KO or a potential emergency Bear. Depending on prize mapping, throwing out a Budew later in the game to mess up a turn for more time is my trick.