I assume your decision cannot be overturned, but I was on waiting for my dude and just couldn't activity post Bc of the smogcast right after our time and then I forgot to post after. My forum activity and the case is proof I was on and he hasn't viewed forums in 18-19 hours when we scheduled for 8-10 hours ago, so I feel like I do deserve activity.
Please don't switch Zard-Y into Mawile as taking any hit from Mawile, even Fire Fang will leave you in Sucker Punch range. I know you have Roost but it will then become a prediction war.
252+ Atk Huge Power Mawile-Mega Sucker Punch vs. 0 HP / 4 Def Charizard-Mega-Y: 176-208 (59.2 - 70%) -- guaranteed 2HKO
Just another nitpick, didn't feel it was worth another post, but generally moves should only be slashed once on the set to avoid confusion (you can't run sub twice after all lol). In the moves section you can mention that it is an option over coverage, but moves aren't supposed to be slashed twice.