Card Trivia:Dark Blade
- "Dark Blade" is featured in the artwork of the following cards:
- "Dark Blade" is wearing "Metalsilver Armor", though he does not appear to have gained its effects.
- This is one of only two monsters that has two different Union Monsters designed for its use - the other is "X-Head Cannon", which has identical stats.
- The two monsters that are designed to be equipped to this monster are "Pitch-Dark Dragon" and "Kiryu".
- Outside of the "VWXYZ" monsters, this is the only monster who fuses with one of its Union Monsters ("Pitch-Dark Dragon").
- The Supreme King's armor is similar to that of this monster, which through some odd coincidence, can be found in Starter Deck: Jaden Yuki.
- This card's English flavor text mentions "Dark World" nine boosters before the "Dark World" archetype was released. Its Japanese text instead mentions "Dark Demon World" (闇魔界), which implies that "Dark Blade" serves "King of Yamimakai".
- This monster has a retrained version with effect: "Dark Blade the Captain of the Evil World"