This one called for Dark Type, a type of Pokemon I don't typically care about because I'm not in high school anymore. :P That said, I always felt Sableye was more solid than gossamer, so the traditional idea of "ghost" doesn't come up, and it just brings Dark to the forefront instead, Yami's soul stealing powers aside. Speaking of soul consumption, don't look into his eyes. Said soul consumption just... happens, if you do. This tends to leave him lonely and friendless.
Yami is from Chibi's Corner.