- In the TCG, this card's first release is a Secret Rare, while in the OCG, it's simply a Rare, and so it is far less valuable despite its powerful nature.
- Just as the "Horus" and "Armed Dragon" archetypes came in the same set, Soul of the Duelist, their DARK forms came together in the same set of Phantom Darkness.
- At one time, this was one of the most sought after cards in the TCG, selling for as much as $250.00.
- This monster appears in the artworks of "A Major Upset", "Dark Mambele" , "Draconnection" and "Dracocension".
- This monster has another counterpart: "Metaphys Armed Dragon"
- This monster's Summoning condition is similar to the Special Summoning condition of "Knight of the Red Lotus".
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