Gyarados ex is card #109 of 112 in FireRed & LeafGreen (2004), a Rare Holo EX illustrated by Hikaru Koike. At about $201 it is the #8 most valuable card in the set. In a FireRed & LeafGreen booster it turns up about once every 72 packs. It is one of 57 Gyarados cards printed so far.
1999Base Set
2002Legendary Collection
2004FireRed & LeafGreen
2006Holon Phantoms
2009Platinum
2013Legendary Treasures
2017Crimson Invasion
2021Evolving Skies

















See the full FireRed & LeafGreen card list
An ungraded Gyarados ex from FireRed & LeafGreen sells for about $201. A PSA 10 is worth more, roughly $2,609 by our estimate, and a PSA 9 around $803.
It is a Rare Holo EX, and it shows up about once every 72 FireRed & LeafGreen packs.
Hikaru Koike drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open FireRed & LeafGreen 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.