Its also got the advantage of being a Kanto original, adding further nostalgic value to this card
Most of the supporting Spells/Traps are part of the broader "Cyber" archetype, which "Cyber Dragon Core" can search
It was one huge advert, showcasing how the card game worked so kids would buy it, but behind that cynical shell it was a really sweet show about believing in yourself and your abilities even when things looked bad

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This is also sort of naturally determined by the way the colors themselves play, but the creature versus noncreature theme which sort of naturally manifested was one of the starker contrasts I think Ive seen while making these