@Noqanky:
Am I alone in thinking Mega Sableye is aesthetically the most boring Mega Evolution? I was hoping for more than just a huge gem to hide behind.
There are other very small changes: the eyes change color and they add that fin in the top of its head. But what I liked the most about it is that it is always hiding behind the gem while peaking at you… it's so damn cute!
@NateRich:
People are saying that the big gem is from the one on his chest. I can't clearly tell from the trailer but it seems a good explanation
It is. When it Mega evolves, you can see the gem in its chest (bigger than regular Sableye's). Then the gem glows, leaves the body and grow. After that, you can see a hole in Mega Sableye's chest where the gem used to be: