Tentacool is card #26 of 203 in Evolving Skies (2021), a Common illustrated by Satoshi Nakai. At about $0.22 it is the #183 most valuable card in the set. In an Evolving Skies booster it turns up about once every 9 packs. It is one of 16 Tentacool cards printed so far.
1999Fossil
2002Legendary Collection
2003Aquapolis
2006Legend Maker
2010HS—Triumphant
2017Guardians Rising
2019Unbroken Bonds
2021Evolving Skies

















See the full Evolving Skies card list
An ungraded Tentacool from Evolving Skies sells for about $0.22. A PSA 10 is worth more, roughly $0.77 by our estimate, and a PSA 9 around $0.44.
It is a Common, and it shows up about once every 9 Evolving Skies packs.
Satoshi Nakai drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Evolving Skies 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.