Would have been cool in BW, but I honestly can't help seeing it as a slower, weaker, mega sceptile in XY... Then there is the Smogon bird to take into account, totally changing the meta Contrary Serperior will see itself in.
I know it will rise to at least RU, but I'm not sure about UU. In OU Sceptile outclasses it so it wont be used, but I could see it getting some usage in UU. Contrary and Leaf Storm go together so well, but I don't really see it getting too good due to Serperior's stats sucking so much.
Well Sceptile will get banned from RU and maybe UU so that's why I think it will eventually be pretty good for RU.Atm, Mega Sceptile is in RU so Serperior will still be pretty outclassed in RU, unless Sceptile gets banned to UU/OU. And although this thread is about Contrary Serperior, I think there's a more important question at hand: anybody hyped for Reckless Emboar?
Also, was this even approved?