Card Trivia:D/D Savant Kepler
- This monster is based on Johannes Kepler.
- This is further expressed in the design of the card, which features several orbs racing along on tracks. Kepler postulated the current model of the Solar System that we know today, which was later proven by Galileo Galilei.
- This card is a polar opposite to "DD Magical Sage Galilei" in terms of its Level and Pendulum Scale. While this is a Level 1 monster with a Pendulum Scale of 10, "Galilei" is a Level 10 monster with a Pendulum Scale of 1.
- In addition, their Pendulum Effects are also a complete opposite. This card's Pendulum Scale decreases by 2 while "Galilei's" Pendulum Scale increases by the same amount.
- The decrease of the Pendulum Scale of this card is explained in the anime since this card is an unstable prototype of Pendulum Monsters.
- Ironically, the OCG/TCG effect of Stargazer Magician and Timegazer Magician is also "unstable" as they can keep their original Pendulum Scales only if they are both on the field OR if they're paired with Odd-Eyes Pendulum Dragon.
- In addition, their Pendulum Effects are also a complete opposite. This card's Pendulum Scale decreases by 2 while "Galilei's" Pendulum Scale increases by the same amount.
