Card Trivia:Heavymetalfoes Electrumite
- This monster is "Metalfoes Silverd" wearing her own armor, as well as that of "Metalfoes Goldriver". This monster's ATK is the average of those two monsters' ATK. This is further supported with Electrum being an alloy of gold and silver.
- This is the first Psychic Link Monster, the first "Metalfoes" Extra Deck monster that is not a Fusion Monster, and the first Link Monster to list Pendulum Monsters as materials.