She only destroyed a nation over a dozen times, probably killed many with in the wars that did that, made countless ponies be unborn, etc, etc. She undid it all, but talk about unstable. She makes Twilight look unshakable.
*hits SAVE Saving game please wait…
oh… guess i’ll have to FIGHT. wait…I can FIGHT her over and over and over as i’ll just reload the save to this moment, nice.
(Note: Has never played Undertale and has no idea what the SAVE option actually does)