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- This card has three retrained counterparts, "Black Luster Soldier - Envoy of the Beginning", "Black Luster Soldier - Envoy of the Twilight" and "Black Luster Soldier - Super Soldier", as well as an Illegal Normal Monster counterpart, "Black Luster Soldier".
- The Japanese version name "Chaos Soldier" comes from its original manga and anime appearance in which a LIGHT and DARK monster were necessary sacrifices to perform the "Black Luster Ritual". The LIGHT and DARK souls created a gateway to chaos which "Gaia The Fierce Knight" charged through to become "Black Luster Soldier".
- In some video games, this card has a DARK Attribute as opposed to the EARTH Attribute it has in the TCG.
- In most video game texts, this card is stated to have power equivalent to that of the "Blue-Eyes White Dragon", most likely due to the fact that its ATK, DEF and Level equal that of "Blue-Eyes White Dragon".
- Interestingly, unlike "Dark Magician", which had counterparts in other series for being the signature card of a main protagonist, Yugi Muto, this card does not have any counterparts as there as yet to be a main protagonist after Yugi who uses a 3000 ATK monster as their secondary ace.
- Although one could argue that "Stardust Dragon/Assault Mode" could be considered a counterpart in this sense.
- This was one of the very few cards not to have an 8-digit input code in the bottom left corner until its reprint in Legendary Collection 3 Mega-Pack.
- Its reprint in Duelist Pack: Battle City lacks this code though.
- Pharaoh Atem probably carried the spirit of this card, as he became "Black Luster Soldier" and fused with Seto Kaiba's "Blue-Eyes Ultimate Dragon" to form "Dragon Master Knight" in the fight with Zorc Necrophades.