If you control Curiosity and it's enchanting an opponent's creature, you won't draw a card when that creature deals damage to you
Released exclusively for the Japanese OPCG launch, this ultra-grail was awarded only to winners of high-profile 2022 tournaments like Flagship Battles and Asian Regional Finals, with a strictly limited print run of 500 serialized copies (e.g., #001/500)
Nuka-Cola Vending Machine might seem unassuming, but there are a great number of decks making Food that can abuse this
30, 2024, and has basically printed money for The Pokmon Company since then, hitting 100 million downloads and generating over $500 million in revenue
The Color Challenges provide your foundation
Bear Umbra is, of course, up there at $7 as it cant be brought low by reprints for long