Card Trivia:Odd-Eyes Metal Dolphin


 * This card is a representation of the bond between and, with the latter acting as the former's morality anchor.
 * In Railgun canon, when the two of them played as children, Mitori would often make small metal dolphins appear out of jugs of liquid metal using her ability, which Dolly would be fascinated by.
 * It is a Level 8 DARK Machine, like Mitori's "Gimmick Puppets", and an "Odd-Eyes" monster, which is the archetype that all of Mikoto's clones (including Dolly) use.
 * Its effect to send other DARK Machines from the Deck to the GY helps "Gimmick Puppet" monsters greatly, while the monster effect-freezing effect is similar to the effect of "", a card that Dolly's origin frequently uses.