Card Trivia:Chaos Emperor Dragon - Envoy of the End
- This monster appears in the artwork of "Chaos Seed".
- This card is arguably responsible for the existence of the Forbidden status. Due to this card's effect, it played a crucial role in the Yata-Garasu Lockdown, which led to Konami creating the Forbidden status in August 2004.
- In fact, this card and "Victory Dragon" share some similarities, both being Level 8 DARK Dragons that had a crucial role in the game's history. "Victory Dragon" started the Match Winner series, while this card led to the Forbidden status being made.
- This card is the first Dragon monster to have been Forbidden.
- Both "Black Luster Soldier - Envoy of the Beginning" and this card have less powerful versions of themselves in the form of "Sky Scourge" counterparts, "Sky Scourge Enrise" and "Sky Scourge Norleras" respectively. The "Sky Scourge" monsters have similar effects and Summoning requirements to the "Envoy" duo as well, although the banishing of monsters from the Graveyard is both Type and Attribute-specific.
- The background circle on this card and "Black Luster Soldier - Envoy of the Beginning" makes reference to DARK and LIGHT.
- "Chthonian Emperor Dragon" has its appearance and English name based on this card.
- In Yu-Gi-Oh! GX, Bastion Misawa states that this card is so powerful that it has been banned from official tournaments, making it one of the few cards that was Forbidden both in the anime and the real-life card game.
- Oddly enough, despite this Kaiba uses this card against Zigfried von Schroeder during his Grand Championship, suggesting that either this card was banned after this Duel occurred or that it didn't matter since their Duel wasn't an official match of the tournament.