Board Thread:Speculation House/@comment-27883360-20160305074527/@comment-25936766-20161010232457

^Here's the trick, anon. Semblances reflect personality, in one way or another. Nora is energetic, and her Semblance is to power-up her muscles when hit by electricity. Blake thinks she's a coward, and her Semblance is to make fake shadow clones to take the hit while she moves away. Weiss is the exception since her Semblance is hereditary.

So, in order to have an idea of what Ren's Semblance would be, we should analyze what we've seen of his personality.