Turn all of your Prize cards face up. (Those Prize cards remain face up for the rest of the game.) If this Pokémon has at least 1 extra Psychic Energy and 1 extra Darkness Energy attached to it (in addition to this attack's cost), take 2 Prize cards. (You can't use more than 1 GX attack in a game.)
Release year for Cosmic Eclipse is 2019. Cosmic Eclipse is grouped under the Sun & Moon era.
The checklist contains 272 cards, placing it in a very large expansion range. As of 2026, the set is 7 years old and now falls into an established back-catalog period.
Naganadel & Guzzlord-GX (#260) is one of the Rare Rainbow prints in this expansion.
In 2019, Cosmic Eclipse introduced this print of Naganadel & Guzzlord-GX. Core profile: Its card type is Pokémon.
The rarity label is Rare Rainbow. Printed HP is 280.
Energy typing is Dragon. Card subtype classification is Basic, TAG TEAM, GX, and Ultra Beast.
The card text reads: TAG TEAM rule: When your TAG TEAM is Knocked Out, your opponent takes 3 Prize cards. This card has the following ability: "Violent Appetite".
Current market pricing for Naganadel & Guzzlord-GX (Cosmic Eclipse) sits near $27.44. Its 7-day movement is largely flat at 0.0%.
That is close to the 30-day average of $27.50. Its 90-day trading band runs between $27.23 and $27.77, producing a 2% range and low-volatility behavior.
This version is categorized as Rare Rainbow.
Collectors tracking Naganadel & Guzzlord-GX often benchmark it against other Naganadel cards. The current sample spans 3 comparable cards from 1 set.
Comparable prices currently cover $8.39-$102.66, a 1124% band. Against the sample mean of $43.44, this card is -37%.
Notable alternatives include Naganadel & Guzzlord-GX #223 (Cosmic Eclipse) at $19.28, Naganadel & Guzzlord-GX #224 (Cosmic Eclipse) at $102.66, and Naganadel & Guzzlord-GX #158 (Cosmic Eclipse) at $8.39.
Market structure summary: We observe a 0.0% shift this week, which points toward price consolidation rather than immediate volatility. With a 2% 90-day spread ($27.23-$27.77), this card currently tracks as low-volatility.
Relative to the 30-day baseline ($27.50), pricing is near equilibrium. Top-grade copies show substantial separation from raw: PSA 10 is pricing +378% above the current raw benchmark.
PSA 9 is currently around $35.82, while PSA 10 is $131.10.
