Tentacool is card #23 of 145 in Guardians Rising (2017), a Common illustrated by Shibuzoh.. At about $0.34 it is the #149 most valuable card in the set. In a Guardians Rising booster it turns up about once every 8 packs. It is one of 16 Tentacool cards printed so far.
1999Fossil
2002Legendary Collection
2003Aquapolis
2006Legend Maker
2010HS—Triumphant
2017Guardians Rising
2019Unbroken Bonds
2023151

















See the full Guardians Rising card list
An ungraded Tentacool from Guardians Rising sells for about $0.34. A PSA 10 is worth more, roughly $1.70 by our estimate, and a PSA 9 around $0.78.
It is a Common, and it shows up about once every 8 Guardians Rising packs.
Shibuzoh. drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Guardians Rising 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.