Tentacruel is card #44 of 62 in Fossil (1999), a Uncommon illustrated by Kagemaru Himeno. At about $5.39 it is the #44 most valuable card in the set. In a Fossil booster it turns up about once every 5 packs. It is one of 16 Tentacruel cards printed so far.
1999Fossil
2001Southern Islands
2003Aquapolis
2006Legend Maker
2008Legends Awakened
2015Primal Clash
2019Unbroken Bonds
2023151

















An ungraded Tentacruel from Fossil sells for about $5.39. A PSA 10 is worth more, roughly $70.07 by our estimate, and a PSA 9 around $21.56.
It is a Uncommon, and it shows up about once every 5 Fossil packs.
Kagemaru Himeno drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Fossil 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.