Cloyster is card #42 of 165 in Expedition Base Set (2002), a Rare illustrated by Kyoko Umemoto. At about $40.82 it is the #107 most valuable card in the set. In an Expedition Base Set booster it turns up about once every 56 packs. It is one of 14 Cloyster cards printed so far.
1999Fossil
2002Expedition Base Set
2004FireRed & LeafGreen
2007Secret Wonders
2014XY
2017Sun & Moon
2020Sword & Shield
2023151

















See the full Expedition Base Set card list
An ungraded Cloyster from Expedition Base Set sells for about $40.82. A PSA 10 is worth more, roughly $531 by our estimate, and a PSA 9 around $163.
It is a Rare, and it shows up about once every 56 Expedition Base Set packs.
Kyoko Umemoto drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Expedition Base Set booster packs in your browser with the set's real pull rates and keep what you pull in a digital binder. No real cards, nothing to buy.