(You can't use more than 1 GX attack in a game.)
Gyarados-GX from SM Black Star Promos is currently trading around $2.69. The 7-day delta remains near neutral at 0.0%.
It now sits 6.0% above its 30-day average of $2.54. Its 90-day trading band runs between $1.99 and $3.30, producing a 49% range and moderate-volatility behavior.
Rarity classification for this copy is Promo.
Market structure summary: Short-term movement is stable (0.0% over 7 days), with price action clustered near recent averages. The 90-day range spans $1.99 to $3.30 (49% spread), which indicates moderate-volatility behavior.
Current value is 6.0% above its 30-day reference ($2.54). Condition sensitivity is substantial: PSA 10 carries a +2249% premium over raw value.
PSA 9 is currently around $18.35, while PSA 10 is $63.19.
In 2017, SM Black Star Promos introduced this print of Gyarados-GX. Core profile: Its card type is Pokémon.
The rarity label is Promo. Printed HP is 230.
Energy typing is Water. As an evolution, Gyarados-GX develops from Magikarp.
The card text reads: Pokémon-GX rule: When your Pokémon-GX is Knocked Out, your opponent takes 2 Prize cards. Attack line includes "Dragon Rage" and "Hyper Beam-GX".
Collectors tracking Gyarados-GX often benchmark it against other Gyarados-GX cards. This comparison sample includes 4 alternatives across 2 sets.
In this sample, pricing ranges between $5.11 and $57.02 (1016% total span). Relative to the alternative average ($24.47), this card is -89%.
Notable alternatives include Gyarados-GX #18 (Crimson Invasion) at $13.17, Gyarados-GX #112 (Crimson Invasion) at $57.02, Gyarados-GX #101 (Crimson Invasion) at $22.59, and Gyarados-GX #16 (Hidden Fates) at $5.11.
Release year for SM Black Star Promos is 2017. SM Black Star Promos is grouped under the Sun & Moon era.
The checklist contains 250 cards, placing it in a large expansion range. As of 2026, the set is 9 years old and now falls into an established back-catalog period.
In the SM Black Star Promos checklist, Gyarados-GX occupies position #SM212 as a Promo card.
