[GreyOwl]

I thought about those concerns, but the problem is Heroscape doesn't distinguish between "superhuman powers" and "regular abilities". So if she can mimic powers, it's not fully thematic because she can get superhuman powers. If she can't mimic any powers, then she's fairly boring and still not thematic.

By the way, Anti-Monitor could easiily be excluded by limiting Mimic to Unique Heroes only.

Another option is to limit Mimic further, for example to Unique Vigilante Heroes. Most of them don't have superpowers, at least not on the order of teleporting and flying. I'm not sure if that would make her too niche, though.