Which is apparently an identity-taker.
Though, I wonder, what form does that take? Do people recognize her as the person whose identity she takes, without her actually taking their form? Or does she gain the capability to shapeshift into them, like Desdemona? Or does she transform into them involuntarily?
“…Judge not what a man has done, but judge what he could have done if he was a different bloke altogether. For art thou a leper? And a leper can changeth his spots…” --Rudy Wade, Misfits (Series 4, Episode 8)