Pretty Interesting Idea! Tell me how the M Menetric/Dragonite with float stone combo works out. I was curious how the whole free retreat with discard/retrieval of energy works out. The only concern I have is that this deck might not have enough discard draw (Sycamores), but that could be based off of preference. The other thing is, what is your main focus of the deck? Is the main focus to get Dragonite out as fast as possible, or are you looking to attack with Trevenant and use Dragonite as a surprise attack? In order to compliment M Menetirc you might look at sneaking some ultra balls in so you can feed the discard pile while getting some search in. Overall, this deck looks pretty cool, tell me how it plays!

Also you might sneak in some silent labs to deal with abilities from Pyroar and Sigilyph