Card Trivia:Archfiend Black Skull Dragon
- This card is a retrained counterpart of "Black Skull Dragon".
- Both monsters share the same Level, Attribute, Type, ATK and DEF and are formed through the Fusion of a Level 6 "Archfiend" monster and a "Red-Eyes" monster.
- This card's Japanese name, "Fiend Dragon – Black Daemon's Dragon", is also based on "Black Skull Dragon", whose original name is "Black Daemon's Dragon".
- It was also the name "Black Skull Dragon" was called during its first appearance in the Japanese version of the Yu-Gi-Oh! anime.
- Visually, this monster is a Fusion of "Red-Eyes Archfiend of Lightning" and "Red-Eyes Black Flare Dragon", which are valid Fusion Materials for this card.
- This card also shares the same Level, Attribute, Type, ATK and DEF as "Hot Red Dragon Archfiend Abyss". Both cards are demonic Dragons that are Special Summoned from the Extra Deck and are members of the "Archfiend" archetype.
- This card is the first Fusion Monster to require a Fusion Material of a specific Level.