Card Trivia:The Caveman that Awoke after a Millennium
- "Millennium Shield" appears in this card's artwork.
- This monster is a retrained counterpart of "Sengenjin".
- This monster's artwork may be a reference to the flavor texts of "Sengenjin" and "Millennium Shield." The flavor text of "Sengenjin" states that it carries Millennium Items, while the original flavor text of "Millennium Shield" refers to it as a Millennium Item.