- 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 card 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 a Pendulum Monster as Link Material.
- It is also the first "Metalfoes" monster to be Limited
- In Yu-Gi-Oh! Legacy of the Duelist: Link Evolution, as of Ver 1.0, Electrumite incorrectly uses the card art of Armed Dragon Catapult Cannon
- The detailed view also lists Electrumite as having 2000 defense, despite being a Link monster and therefor having no defense, nor ability to switch into defense mode
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