It's come to my notice that there is two things that can mess with Mega-Sableye and give you the edge, if you're given the chance: Physical Fire-Type Pokemon and Guts users.
Well, that is what I thought of when factoring the Calm Mind + WoW the gemstone-eyed imp likes to run on it's set to basicly take hits all day.
I ran a few calcs with Max Attack Zard X and Max Defense M-Eye, and if I am not mistaken, a Flare Blitz from the Fire/Dragon is going to deal at least half. Don't qoute me on this. Likewise, a Life Orb 252 Atk Jolly Infernape using the same move on a Max Def M-Eye deals....161 HP, if my calcs are right, again. Then again, damage rolls. And the opponent will most likely switch...
(( Hurray, this is my first actual post on Smogon's forums, after lurking around since the days of DPP X'D ))