Eclipse — [s3e12] Lunar

: During the lunar eclipse, werewolves lose their supernatural powers. Derek Hale and the Alphas are rendered human and vulnerable until the moon passes out of the shadow.

: She is defeated after Derek distracts her during the eclipse. Deucalion slashes her throat, and Peter Hale delivers the final killing blow. [S3E12] Lunar Eclipse

For more detailed information, you can find the full episode recap on IMDb or view the Lunar Ellipse Wiki . Lunar Ellipse | Teen Wolf Wiki | Fandom : During the lunar eclipse, werewolves lose their