Dark Gyarados is card #36 of 109 in Team Rocket Returns (2004), a Uncommon illustrated by Nakaoka. At about $315 it is the #13 most valuable card in the set. In a Team Rocket Returns booster it turns up about once every 15 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 Team Rocket Returns card list
An ungraded Dark Gyarados from Team Rocket Returns sells for about $315. A PSA 10 is worth more, roughly $4,095 by our estimate, and a PSA 9 around $1,260.
It is a Uncommon, and it shows up about once every 15 Team Rocket Returns packs.
Nakaoka drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Team Rocket Returns 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.