Well, It can severely injure her and possibly kill her, so I consider that a downside and most if not all of her quirk is memory bases and with how she is she has an extremely difficult time remembering things.  But Thanks for your feedback. I am still very new BNHA so I am not sure what is considered OP for quirks and this helps, me to look and see what is believed is OP with OCs in this fandom. Also, any other feedback would be great since I been looking for some and have been unable to get some.