Board Thread:Questions and Answers/@comment-5441128-20170607210717/@comment-31577509-20170609152545

Dragonfly82 wrote: Kaestal wrote: They wouldn't surrender.... all three could win.

Just vibrate past her invulnerableness and take out her heart. How can one vibrate through her invulnerability? It's called invulnerability for a reason.

Do you even know what invulnerability is? Supergirl is resistant to physical damage but she can still be phased through. So yeah, any of the evil speedsters can take her out.