Card Trivia:Penumbral Soldier Lady
- This card has a counterpart: "Luminous Soldier". Both monsters share the same ATK/DEF and share similar effects and Japanese names ("Moon Soldier Lady" and "Sun Soldier", respectively).
- Furthermore, in the Yu-Gi-Oh! ARC-V anime, both cards were used as Fusion Material. "Penumbral Soldier Lady" for "Penumbral Keeper" and "Luminous Soldier" for "Luminous Keeper".
- "Penumbrae" is the dark part of the moon that we cannot usually see.
