Gyarados is card #130 of 165 in 151 (2023), a Rare illustrated by Kouki Saitou. At about $0.35 it is the #119 most valuable card in the set. In a 151 booster it turns up about once every 35 packs. It is one of 57 Gyarados cards printed so far.
1999Base Set
2002Legendary Collection
2006Holon Phantoms
2009Platinum
2013Legendary Treasures
2017Crimson Invasion
2021Evolving Skies
2023Scarlet & Violet

















An ungraded Gyarados from 151 sells for about $0.35. A PSA 10 is worth more, roughly $1.22 by our estimate, and a PSA 9 around $0.70.
It is a Rare, and it shows up about once every 35 151 packs.
Kouki Saitou drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open 151 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.