Card Trivia:Mannadium Prime-Heart
- This is one of the cover cards of 2-Player Starter Set.
- This monster appears in the artworks of "Mannadium Breakheart" and "Mannadium Reframing".
- This card is an upgraded Synchro form of "Mannadium Riumheart".
- This card has three DARK Heart counterparts:
- "Scareclaw" Link: "Scareclaw Tri-Heart"
- "Tearlaments Fusion: "Tearlaments Kaleido-Heart"
- "Kashtira" Xyz: "Kashtira Arise-Heart"
- This card also has a DARK "Visas Starfrost"-oriented Fusion counterpart: "Vicious Astraloud"
- This card being the first upgrade of a "Visas" or "Heart" monster to be LIGHT fits with how "Riumheart" is the only "Visas"/"Heart" monster that did not become evil.
- This card is also the first upgrade to a "Heart" monster to lack distinctly animalistic features, giving it a more civilized and saintly appearance to compliment its good nature.
