Board Thread:Off Topic/@comment-24993958-20161230201819/@comment-25936766-20170107184050

Semblance-copying Semblances is fine, when limited to avoid being OP. It's literally the same as Velvet's entire MO, Semblance included, when it comes to Reflection of Personality (which in itself seems to reflect just 1 part of that personality, so it shouldn't mean the OC is that hollow).

It's a Mary Sueish trait, but that doesn't create a Mary Sue on it's own; good writing can avoid that. Though if you don't trust your writing skills, better try something else.

Now, power stealing...no. Nope, nope, nope, unless your OC breeds a bunch of Beetlejuices. Stealing a Semblance means stealing Aura, which is far beyond simple imitation. That means stealing one's Soul, for starters.