Dark side tendrilsCanonLegendsInfinities AppearancesDarth Bane: Dynasty of Evil (First identified as Dark side tendrils) (Unknown)Unknown UnknownNoneDarth Bane: Dynasty of Evil audiobook (Unknown)Unknown UnknownNoneDark Apprentice (First appearance) (Unknown)Unknown UnknownNoneFate of the Jedi: Ascension (Mentioned only) (Unknown)Unknown UnknownNoneFate of the Jedi: Ascension audiobook (Mentioned only) (Unknown)Unknown UnknownNone