Gyarados-GX is card #18 of 111 in Crimson Invasion (2017), a Rare Holo GX illustrated by 5ban Graphics. At about $19.84 it is the #5 most valuable card in the set. In a Crimson Invasion booster it turns up about once every 77 packs. It is one of 57 Gyarados cards printed so far.
1999Base Set
2002Legendary Collection
2006Holon Phantoms
2009Platinum
2013Legendary Treasures
2017Crimson Invasion
2021Evolving Skies
2025Destined Rivals

















See the full Crimson Invasion card list
An ungraded Gyarados-GX from Crimson Invasion sells for about $19.84. A PSA 10 is worth more, roughly $99.20 by our estimate, and a PSA 9 around $45.63.
It is a Rare Holo GX, and it shows up about once every 77 Crimson Invasion packs.
5ban Graphics drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Crimson Invasion 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.