Krampus (Relative Dimensions)

A manifestation of Krampus from German mythology was created from a Krampus Card by the Celestial Toymaker to torment the Twelfth Doctor and Clara Oswald.

The Twelfth Doctor described Krampus as "A nasty killjoy that abducts any children who have been more naughty than nice." (COMIC: Relative Dimensions)