Get 3 on the bench, two cards with healing support (like Serperior), add some defense for the Durants with Defenders, Eviolite, special metal energies and optionally some pluspowers and win by discarding important cards from the opponent's deck. It's a bit stretching luck though for example if you were tryng to stop Hydreigon or Kyurem from entering play, there's always a chance that they already have the energies and necessary cards prized or in hand... Team Rocket's Trickery could help out a bit. But anyway on the other hand you could be wrecking their plans very well, getting rid of energies, evolution cards, supporters... they just might end up with a hand full of unsuable cards and have no choice but to watch their decks get eaten alive!
Also, because Devour only needs one energy, Max Potions come in handy, and infuriating if the opponent can only attack with something that can only dish out 10-30 damage.
Not bad, but got a lot of work to do and even then it's not completely reliable.
6/10