how rare is the ancient mew card

how rare is the ancient mew card Found an promo card, seen it go over 300$ on ebay. Can someone explain why it's so valuable? : r/PokemonCardValue but the card can still be sleeve playable This Pokemon Card Went from

Name: how rare is the ancient mew card Found an promo card, seen it go over 300$ on ebay. Can someone explain why it's so valuable? : r/PokemonCardValue but the card can still be sleeve playable This Pokemon Card Went from
Brand: comein.se
SKU: 32246611769
Price: 24.56 USD
Availability: InStock
Rating: 4.3654 (10 reviews)

SKU: 32246611769

4.4

USD24.56 USD57.56

Pay in 4 interest-free payments of $6.14 Learn more

Shipping Estimate
USA

USA

CAN

Ships within 48 hours · Estimated delivery Aug 16 - Aug 21

Description

Conquer a stage to unlock the next and delve deeper into this water-themed event

Verification failed

For example, you could be in either Undercity or Lost Mine of Phandelver, but not both

Unless people are slinging a lot of damage around, it won't be unusual for us to have over 50 life

Preserving Physical Card Elements During Encasement Investing in a premium magnetic one-touch card case does much more than provide a clear window for display