XD we'd be fucked against both of them at the same time. Not only would have to dodge sans spaming attacks, but we'd have to dodge undyne's as well.... It would literally be impossible. XD it'd be an effective way to stop the genocide. That's for sure. And it would deffinitely be a bad time.... For us anyways. XD Undyne might have fun watching us squirm in anger as we rage over their attacks. XD