Card Trivia:Elemental HERO Core
- This card is considered the upgraded form of "Elemental HERO Terra Firma":
- This monster features a similar design and coloration to "Terra Firma", as well as the same Attribute and Type, but with 1 Level higher and 200 more ATK and DEF.
- This card's final effect can be used to Special Summon "Terra Firma" from the Graveyard.
- Additionally, "Core" and "Terra Firma" are both played by Koyo Hibiki in the Yu-Gi-Oh! GX sequel chapter.
- Also, since "Terra Firma" is part of the "Legendary Planet" series and its name refers to the planet Earth, this card's name, "Core", is a reference to the Earth's inner core.