Board Thread:General Discussion/@comment-26285761-20150702074516/@comment-26061913-20150703065424

Strong In The Real Way wrote: The thing is though, the Wiki doesn't deal with speculation. So if, for example, only Garnet has thus far shown the ability to generate electricity it is a unique ability for her until we see another Gem do it.

At least, that's how I see it. Stronk is legit.