Help Mega sceptile EX deck

[jamesyak]

i am getting back into ptcg and have come up with this deck for Mega sceptile EX:

pokemon:
3 M sceptile Ex
4 Sceptile Ex
1 hoopa Ex
2 shaymin Ex
2-2 ariados

trainers
3 sycamore
3 N
1 skyla
4 ultra ball
2 nest ball
2 timer ball
2 mega turbo
1 fisherman
1 prof letter
2 VS seeker
2 hex maniac
4 sceptile spirit link
2 trainers mail
2 lysandre
2 float stone
3 shrine of memories

10 grass energy

I'm not sure how well this deck would fair so could I have some advice on how to make it better

 

[pikachuuuu101]

this deck is only expanded legal so it should run an ace spec ,and tech for that meta