Card Trivia:Zoodiac Ratpier
- This monster appears in the artworks of "Dragonic Diagram" and "Zoodiac Combo".
- This card is based on the sign of the Rat in the Chinese zodiac.
- This card's effect of sending a "Zoodiac" monster from the Deck to the Graveyard is a reference to the Rat's role in The Great Race (an origin story of the Chinese zodiac), where it pushed the Cat into the water, causing it to drown.
- "Marmorat" in this card's Japanese name, "Marmorat of the Twelve Zodiac Beasts" (じゅうにししモルモラット, Jūnishishi Morumoratto) appears to be a portmanteau of "morumotto" (the Japanese word for guinea pig) and "ratto" (the Japanese pronunciation for the English word "rat"), both of them based on rodents largely raised as experimental animals.
- "Ratpier" in this card's English name is a portmanteau of "rapier" and "rat", which is reflected in this monster's appearance of a rat-themed knight who are known for wielding rapiers as weapons.
- Also, this monster's weapon is a rapier that features rat-like figures on its hilt, which further reflects this card's English name.
- "Ratpier" in this card's English name is a portmanteau of "rapier" and "rat", which is reflected in this monster's appearance of a rat-themed knight who are known for wielding rapiers as weapons.
- This monster's rapier is also wielded by "Metaltron XII, the True Dracombatant".
