Card Trivia:Dark Femtron
- This monster's name is based on the Femto-, a metric prefix meaning 10^-15.
- This card is the Dark counterpart of "Femtron".
- This card's flavor text tacitly foreshadows and references "Space Yggdrago" and its related theme of cards. Those cards were used by Zaion from the Yu-Gi-Oh! GO RUSH!! anime, who is the past counterpart to this card's user in the Yu-Gi-Oh! SEVENS anime, Nail Saionji. Fittingly, Zaion used or is associated with Dark counterparts of a number of the cards Nail used.