update: been finding that I have a lot of dead hands so i cut 1 trainer's mail for another shaymin ex. Using ultra ball to get out of them is pretty powerful and i can always parallel city myself to get rid of them if necessary. the benefits outweighed the risks.
so i saw the the new salamance ex and garchomp ex boxes come out next month and while garchomp isn't good and mega salamance isn't good, the plain salamance ex is interesting
his first attack beast fang costs a fire and 2 colorless and it does 10 plus an additional fifty for each ex pokemon...
yeah I got hasty with my stadiums, and once he got fairy garden out and chaos wheel i was a bit screwed. Also I should have hit his benched giratina with pitch black spear instead of going for the cheap shaymin knockouts so he doesn't bring giratina into the active.
so I ended up doing the following:
-2 Switch
-1 hex
-1 special charge
-1 darkrai EX
+4 mail
+1 Yveltal GEN
Special charge has kinda been a dead card for me so far since I feel I tend to draw it early and discard it via ultra ball or sycamore. This deck also is pretty good at conserving dce...
another tech to think about depending on the meta is magearna ex. There are a ton of Yveltal/Mew and Mega Mewtwo Players in my area and Magearna helps stop damage change and Pitch Black Spear.
The reason I like Tmail is because it's a consistency card. Only running 1 Shaymin and having the ability to look for a trainer card I need feels like it's a staple inclusion.
at this point i have
-2 switch
-2 parallel city
-1 reverse valley
+1 Yveltal GEN
+4 Trainers' Mail
I still think...