NormalFish
Banned
Well HP Ice is fairly common on Thundurus so Sceptile might not be the best counter.
mega sceptile is 70/85 on the special defensive side. Will try a defensive set, I guess...
To add to this:252+ SpA Thundurus Hidden Power Ice vs. 252 HP / 128 SpD Sceptile: 74-88 (41.8 - 49.7%) -- guaranteed 3HKO
And...128+ SpA Sceptile Hidden Power Rock vs. 0 HP / 0 SpD Thundurus: 90-108 (58.4 - 70.1%) -- guaranteed 2HKO
128+ SpA Sceptile Dragon Pulse vs. 252 HP / 0 SpD Thundurus: 96-114 (51.6 - 61.2%) -- guaranteed 2HKO
I think it qualifies as a counter.
**Fixed 2nd calc. Forgot HP EVs.
I'd guess if this becomes standard that Thundurus will start running a more specially defensive set than usual, which means if you partner a strong physical attacker with Mega Sceptile, thundurus is no issue. Time to breed a god tier Sceptile.