This is exactly the kind of mess we wrote about in our grading editorial
Its one where you need to attack, but you win as long as the ability on attack resolves
This is a tin that collectors like myself are kicking themselves for not buying upon its release in 2021
The most important factors are edition (1st Edition, Shadowless, Unlimited), condition (mint cards command premiums), rarity (holographic, secret rare, full art), age (vintage Base Set cards are highly sought after), and the Pokemon itself (Charizard, Pikachu, and fan favorites are worth more)
This format works perfectly for Pokmon deck cards because players can shuffle quickly and maintain equal card handling during official matches
The "Shipping Check": if someone buys 3+ books and the system overcharges you, I can use the "Refund Shipping" tool in my seller dashboard to give you the difference back