The "Eternal Rivals" expansion from the Crimson & Crimson series quickly made a name for itself among collectors and players – not only for its exciting duels, but especially for its rare and beautifully illustrated cards. In this article, we'll show you the top 10 rarest Pokémon cards from Eternal Rivals – including current market prices and special features. If you want to know which cards are especially valuable, you've come to the right place.
Top 10: The rarest Pokémon cards from “Eternal Rivals” – valuable highlights for collectors
The 10 rarest Pokémon cards from Eternal Rivals:
(As of June 2025)
10th place: Team Rocket's Giovanni (238/182) – €25 to €45
The card depicts Giovanni at the center of a gloomy gathering, surrounded by all the Team Rocket executives. A card that visually resembles a group photo from the underworld. With prices ranging from €25 to €45, it's a real highlight for fans of the classic Pokémon era.

9th place: Klarin's Adventure (236/182) – €35 to €55
The card tells a short story: Clarin on the move with his loyal Pokémon. One of the most popular Trainer cards in the edition.

8th place: Misty's Psyduck (193/182) – 35 to 55 €
This charming card shows Misty training with her Psyduck – humorous, nostalgic, and a visual highlight.

7th place: Team Rocket's Mewtwo-ex (Gold Version – 240/182) – €45 to €80
Yes, Mewtwo-ex appears twice on the list – the golden Hyper Rare version is also in high demand and rarer than you might think.

6th place: Team Rocket's Iksbat-ex (234/182) – €50 to €80
This card is both tactically valuable and a collector's item. The special illustration depicts Iksbat in a nighttime attack.

5th place. Team Rockets Nidoking-ex (233/182) – 80 to 120 €
A powerful appearance: Nidoking-ex brings two powerful attacks, including the infamous “Poisoned Horn,” which deals massive damage over time.

4th place: Team Rocket's Moltres-ex (229/182) – €110 to €190
The illustration perfectly captures Moltres' unbridled energy. The card combines gameplay power with a nostalgic Team Rocket flair.

3rd place: Klarins Ho-Oh-ex (230/182) – 130 to 200 €
The legendary Ho-Oh is a real eye-catcher. The card is particularly popular for its dynamic visuals and synergy with fire energies.

2nd place: Cynthia's Garchomp-ex (232/182) – 150 to 210 €
A power duo with iconic status: Cynthia and her Garchomp ex in a spectacular battle scene. This card shines not only with its visual appeal, but also with its gameplay.

1st place: Team Rocket's Mewtwo-ex (231/182) – €280 to €535
This card is currently the most valuable card from "Eternal Rivals." Mewtwo-ex, commissioned by Team Rocket, impresses with a dark, embossed Special Illustration Rare. Demand among collectors is huge—especially in top condition.

Conclusion
The "Eternal Rivals" expansion offers some of the most visually impressive and valuable cards of recent years. Whether due to their nostalgic artwork, powerful gameplay mechanics, or their collectible prices, these cards are truly standouts. Anyone who collects or invests in Pokémon cards from "Eternal Rivals" should take a particularly close look at these ten.
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