Which mythology-inspired retail product development strategy led to the creation of the first collectible card game (CCG) in 1993, revolutionizing gaming retail?

The world of mythology and folklore has inspired countless products throughout history, from books and games to retail experiences and themed attractions. How well do you know the development process behind mythology-inspired merchandise? This trivia question explores how ancient tales were transformed into a groundbreaking retail product that changed its industry.

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Using Greek mythology as the theme for Magic: The Gathering cards
Basing the game Dungeons & Dragons on Norse mythological creatures
Incorporating various mythologies into Magic: The Gathering's color-coded mana system
Designing Yu-Gi-Oh cards based primarily on Egyptian mythology