- This monster inspired the Gaia Knight series, consisting mainly of 2600 ATK monsters resembling "Gaia the Fierce Knight", including one for each Extra Deck summoning mechanic.
- Of those monsters, only "Gaia the Dragon Champion" requires this card specifically as a Fusion Material; its retrains require a "Gaia The Fierce Knight" monster as one of the Fusion Materials instead.
- This monster has several retrains:
- Pre-evolution: "Gaia the Fierce Knight Origin"
- Direct retrains: "Swift Gaia the Fierce Knight", "Lord Gaia the Fierce Knight"
- "Black Luster Soldier" support retrains: "Arisen Gaia the Fierce Knight", "Charging Gaia the Fierce Knight"
- "Gaia the Dragon Champion" support retrains: "Gaia the Magical Knight", "Soldier Gaia The Fierce Knight"
- In the manga (and some of the video games), this card is required to Ritual Summon "Black Luster Soldier".
- The Bandai version of this card is Level 6, has a blue horse and 1600 DEF, the Konami card is Level 7, has a violet horse and 2100 DEF.
- This card being a protagonist's purple Warrior-Type Monster of the same card type as its user's ace with 2300 ATK, power up capabilities based on other monsters, and being the start of a monster archetype that its user frequently uses is a trend carried on by "Junk Warrior" and "Decode Talker" (though the latter is a only a warrior aesthetically).
- Either this monster or "Swift Gaia the Fierce Knight" appears in the artworks of "Spiral Spear Strike", "Hero's Guild" and "Baton of the Hero".
- This monster can be seen on Pharaoh Atem's side of the field on the Tablet of Lost Memories.
- In the Yu-Gi-Oh! Toei anime, this monster's horse was colored brown.
- This card's first OCG/TCG artwork is taken from Yu-Gi-Oh! Duel 37: "To the Death!!", specifically from the panel showing this monster being Summoned.
- This card's second OCG artwork is taken from Yu-Gi-Oh! Duelist Duel 59: "The Legendary Swordsman", specifically from the panel in which this monster undergoes the effect of "Black Luster Ritual" to become "Black Luster Soldier".
- This monster's horse appears in the artwork of "Dark Cavalry", which itself represents visually a Fusion between this card and "Dark Magician".