Board Thread:Versus Battles/@comment-29853277-20170928003417/@comment-29853277-20170928081600

If he fast forwards her time, she'll have all the time she needs to use her sight to analyse him and become him, thus rendering her immune to the watch as she is now also the user.

Also, by transforming into her other forms, she could undo the time reversal, as how old they are is part of what she copies.