how pokemon cards are valued 10 Pokémon Worth At Least $10,000 How Much Japanese Pokémon Cards

Alolan Ninetales #28Rare $1.96 Alolan Ninetales #111Holo Rare $13.28 Alolan Ninetales #145Holo Rare $5.58 Alolan Ninetales #56Rare $1.78 Alolan Ninetales #89None $2.27 Alolan Ninetales #23None $15.40 Alolan Ninetales #14None $19.43 Alolan Ninetales - 28/147 (Cracked Ice Holo) #28Holo Rare $10.61 Alolan Ninetales - 28/147 (Water Web Holo) #28Holo Rare $8.62 Alolan Ninetales - SM128 #SM128Promo $6.20 Magmar #20Uncommon $0.16 Arcanine #18Rare $0.40 Magikarp #33Common $0.31 Electabuzz #41Common $0.19 Dugtrio #56Rare $0.12 Machamp #59Holo Rare $4.59 Machoke #58Uncommon $0.11 Koffing #50Uncommon $0.24 Voltorb #39Common $0.09 Beedrill #7Rare $0.30

I could readily look up what a Ertai, Wizard Adept sells for

I don't believe it saw much, if any, Constructed play at the time (I may be wrong on this, but can't seem to find anything from researching online), but the card was considered quite powerful stat-wise and featured some keywords not commonly found on Green cards

While deckbuilding can and does allow us to avoid some of the issues that arise with having a critical mass of a mechanic in the format, it cant solve every issue, and that is no more obvious then it is with treasures