- In Norse mythology, Fenrir or Fenrisulfr is a wolf, the son of Loki and the giantess Angrboða.
- This card is the first WATER Beast monster.
- "Fenrir", in this card, is a WATER monster because it is taking on the form of a Mist Wolf.
- This card's effect that makes your opponent skip their next Draw Phase when it destroys a monster may be a reference to the fact that in Norse mythology he bit off the hand of Týr.
- In the English dub of the movie, Pyramid of Light, it was incorrectly called "Fenril".