Card Trivia:The Winged Dragon of Ra - Sphere Mode
- This monster is based on the Sphere Mode of "The Winged Dragon of Ra" in the Yu-Gi-Oh! manga and anime.
- This card's OCG/TCG artwork is taken from a panel of Yu-Gi-Oh! Duel 221 (Duelist Duel 162): "Descent of the God!", showing Mai Kujaku Tribute Summoning "The Sun Dragon Ra".
- This card's Yu-Gi-Oh! Reshef of Destruction artwork is taken from the title page of Yu-Gi-Oh! Duel 222 (Duelist Duel 163): "The Rise of Ra!", showing "The Sun Dragon Ra" in its Sphere Mode.
- This card's Summoning condition requiring 3 Tributes from either side of the field to be Normal Summoned to that side of the field, its effect to prevent it from attacking, and shifting control to its owner during the End Phase are all derived from the Duel between Yami Marik and Mai Valentine in the Yu-Gi-Oh! anime and manga, where Mai took "The Winged Dragon of Ra" from Marik's hand with the effect of "Amazoness Chain Master" and Tribute Summoned it, but was unable to attack with it due to it being locked in Sphere Mode; Marik chanted the hieratic text on this card during his turn, allowing him to take control of it.
- This card's effect to Special Summon "The Winged Dragon of Ra" from the hand or Deck, ignoring its Summoning conditions, and making its ATK/DEF become 4000 is also a reference to how Marik unlocked it from its Sphere Mode via a chant, as well as Yu-Gi-Oh! Reshef of Destruction, as the player must first unlock its Sphere Mode and then its Battle Mode, which has 4000 ATK.
- "Sphere Kuriboh" is based on this monster.
- This is one of the two only cards with ? ATK/DEF to not have an effect to calculate its original ATK and DEF (making them both 0), the other being "Holactie the Creator of Light".
- This is the first card that can be Normal Summoned to the opponent's side of the field.