This ability often accompanies cards that allow defenders to attack
A Gold Star Espeon rated at PSA 10 Gem Mint condition was sold in February 2021 for over $22,000, while an Umbreon graded at an equally perfect condition fetched just over $20,000 at auction in December 2020
ChatGPT listed reasons such as scarcity, cultural value, nostalgic demand, and even intellectual property durability
S6H has a ~32% box EV ratio, meaning each box averages ~14,600 in card value against the 45,000 cost
They represent unique printings, fan-favorites (like Gengar, Pikachu, Umbreon, Mimikyu), and opportunities for value growth, especially when you find holo versions, special stamps, or PSA-graded gems
It can enter play in an exerted state, and when an opposing character challenges they must choose one of the player's cards with a bodyguard