The build of this deck is for quick rotations from bench to attacks while healing and gusting.
Mew is great to have in the active first turn, can use Mysterious Tail to constantly search for the rare candys to get Decidueye EX into play as quick as possible. By having Decidueye in play as quick as possible means we are able to abuse his ability of a free switch, from the free switch we can go to mew for mysterious tail to search or can swap into mawile for extra damage. By using super effective glasses on decidueye we can also take K.O's onto Charizard EX's. With mawlie as a back up attacker we can also use the Vstar ability to have a free bosses order. Since Decidueye Ex is bulky we can use the switch ability to swap into Altaria to move any damage counters onto the opponent.
Hopefully this deck gets you some wins. :D