Last I checked if Char X is already mega'd, it doesn't stomach Dragon Pulse lol what. If it's not mega, it can't switch in with rocks and probably gets a chunk from Dragon Pulse anyway. Altaria has to be mega to switch in as well, but that's not as pressuring I suppose, since Altaria doesn't have as big of a weakness to rocks and alla that. counter if mega, check if not mega'd in the match yet. Earthquake can chunk Raikou as well, and with prior damage Scep can win. Clefable on an offense team? ?_? Sounds decent but meh, it's more balance or stall... Megagross, yeah, that's fine, probably can take HP Fire and Earthquake so... good check I suppose. Weavile is only a revenge killer, which by nature, happens a lot with offensive teams when facing MSceppy. Talonflame, again, revenges, but it can switch in to some of its moves, so that's a good hard check as well, especially if SpDef. Char Y doesn't appreciate rocks up either but it a good switch in for Mega Sceptile, counter there, especially if SpDef Char Y.
Mega Sceptile has a problem with bulky walls, it's paired with things like Keldeo w/ Specs or Manaphy for that reason. It's in B, too, so it would require more support than our S/A mons, that's simply obvious. Mega Scep's best matchup is against offense, we should look upon its matchups against other styles but saying a bunch of stuff that checks Sceptile, most of them revenge killers and stuff, but seriously, Clef in offense? Were you saying as a check in general? Because your sentence structure made it look a little iffy... Yeah uh, if you weren't, then Clef is a good counter I suppose.