Brunhild Eiktobel (ブリュンヒルド＝エイクトベル Buryunhirudo Eikutoberu?) is a character introduced in Toaru Majutsu no Index SS: Kanzaki, and is its primary antagonist, with much of the events related behind her attempts to create Gungnir. Later after being defeated, she is reintroduced in Shinyaku Toaru Majutsu no Index as GREMLIN's efforts advanced, having to team up with Ollerus and his ilk to prevent Othinus from completing the true Gungnir.