<=== might be one of my favourite mega designs so far. It's so simple, but that huge gem is really striking.
I'm glad to see what looks like a fully defence-oriented mega for once, seeing as how we have a dearth of defensive megas (there's all of Venusaur, Aggron and... maybe Scizor and Char-X...?) and they seem to be mostly for bashing things a micron thin. Hopefully we get a good ability to go along with it! Magic Guard would sound really nice, were it true, and it would really help its role as a wall/tank.
>inb4 wonderguard
(Actually, I'm actually doubting it's Wonder Guard. Keep in mind, Gamefreak mostly balance for the official formula, and things like M-Gengar and M-Kang aren't quite as broken in doubles as in singles. Only one type doing anything to you seems a bit too much, even for doubles.)