The 10 Most Expensive Cards in HS—Undaunted

AK
Alek Koch
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Updated April 8, 2026
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10 cards ranked

Welcome to the world of HS—Undaunted, the set that dropped in 2010, when Pokémon was riding the nostalgia wave hard. We were all still reeling from the glory of the Diamond and Pearl era, and this set was a delightful callback to some classic mechanics and Pokémon. This expansion introduced the Rare Prime cards, which ramped up the excitement levels (and our wallets) thanks to their unique rarity and stunning artwork. Featuring heavy hitters like Umbreon and Rayquaza, Undaunted is a treasure trove for collectors and competitive players alike, blending nostalgia with fierce competition. As a collector, you definitely want to keep an eye on this set — it’s become increasingly sought after as the years roll on, making it one of those magic time capsules of the TCG. The market for HS—Undaunted has seen fluctuations, but the rarest cards are holding strong and even climbing as the competitive landscape shifts. Strap in as we dive into the ten most expensive cards from this standout release, some of which are practically gold bricks in your collection. Spoiler alert: your wallet might cry a little.

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#1

Umbreon

#86 · Rare Prime · Holofoil

$445.28

Market Price

Umbreon - HS—Undaunted #86

Umbreon (#86) is the crown jewel of HS—Undaunted, effortlessly commanding a jaw-dropping price of $445.28. Why? It's a combination of supply and demand, coupled with that sweet, sweet chase factor. This Rare Prime card features Umbreon, the beloved dark-type, in a mesmerizing pose that practically glows with emotion, thanks to the artistry of the talented Tomokazu Komiya. Not only does it look fantastic framed on your wall, but it also has competitive relevance; decks featuring Dark-type Pokémon have seen play due to Umbreon’s ability to absorb damage. Over the years, this card has seen its price skyrocket due to nostalgia and limited availability. Not as easy to pull as a Snorlax in a candy store, Umbreon has a relatively low pull rate, making it a true treasure for those lucky enough to find it. At this price point, it’s not just a card; it’s a statement piece in your collection.

#2

Rayquaza & Deoxys LEGEND

#90 · LEGEND · Holofoil

$225.64

Market Price

Rayquaza & Deoxys LEGEND - HS—Undaunted #90

Next up, we’ve got the dynamic duo of Rayquaza & Deoxys LEGEND (#90), which is currently trading at $225.64. This card’s price tag is no accident—it's part of the coveted LEGEND format, meaning it features two Pokémon in a single card, and collectors go wild for that! The artwork is on another level, showcasing Rayquaza and Deoxys in a stunning battle pose that captures their legendary status. While this card is a sight for sore eyes, it also has its place in competitive play, often finding its way into decks that capitalize on powerful attacks and synergy between the two Pokémon. The historical context is fascinating; this card has seen some ups and downs, but lately, it seems to be on the rise again as collectors remember why it was once the talk of the town. The pull rates are on the tougher side, making it a real treat to find in packs, and if you snagged one, consider yourself lucky. Just be prepared for your wallet to take a hit if you’re looking to buy more!

#3

Rayquaza & Deoxys LEGEND

#89 · LEGEND · Holofoil

$197.35

Market Price

Rayquaza & Deoxys LEGEND - HS—Undaunted #89

Rayquaza & Deoxys LEGEND (#89) might not quite hit the heights of its partner card, but it still commands an impressive price of $197.35. Why the slight dip? It’s all about demand and the card's functionality in decks. While it has similar artwork and is equally gorgeous, collectors often flock to the more iconic card (#90). However, don’t sleep on this one! The artwork is striking, with vibrant colors that pop more than a 90s music video. Competitive players appreciate the nuances this card brings to the table, and it can make or break certain strategies. While the price has been stable, it has shown signs of climbing slowly, which is great for anyone looking to invest. Pulling this card isn’t like finding a shiny Pokémon, but it’s not impossible either. As with any card from this series, having both Rayquaza & Deoxys LEGEND cards can elevate your collection, not just in market value but also in sheer prestige.

#4

Espeon

#81 · Rare Prime · Holofoil

$160.09

Market Price

Espeon - HS—Undaunted #81

Espeon (#81) is a Rare Prime card that’s not just a pretty face; it’s currently valued at $160.09 and is a definite crowd-pleaser. The artwork, which features Espeon in a serene, mystical pose surrounded by the sun's rays, is beautifully crafted by the iconic artist Ken Sugimori. This card is a staple in Psychic-type decks, thanks to its unique abilities that can bend the flow of battle in your favor. Its value has steadily increased over time, driven by nostalgia and the enduring love for the Eeveelutions. Pull rates for this beauty are decent, but finding it in mint condition is the real challenge. In my opinion, if you’re building a collection, this card not only performs well in battle but also adds flair, making it an essential piece in your binder. If you happen to pull one, consider it a mini victory in your Pokémon journey!

#5

Houndoom

#82 · Rare Prime · Holofoil

$151.96

Market Price

Houndoom - HS—Undaunted #82

Houndoom (#82) is the dark horse (pun totally intended) of this list at $151.96. This Rare Prime card is visually striking; it features Houndoom in a fiery pose that epitomizes its fierce nature. While it’s not as iconic as some others, its competitive playability has seen it rise in value. Houndoom has found a niche in decks focusing on aggressive strategies, leveraging its powerful attacks for quick knockouts. The price has been fluctuating but is currently on an upward trend, especially as collectors appreciate its unique artwork by artist Kouki Saitou. Pull rates are decent, making it somewhat obtainable, but finding one in top condition requires a bit of luck. Personally, I think Houndoom is one of those sleeper cards that could become a hot item as nostalgia fuels the market. Keep an eye on this one; it might just surprise you with its potential.

#6

Kyogre & Groudon LEGEND

#88 · LEGEND · Holofoil

$133.68

Market Price

Kyogre & Groudon LEGEND - HS—Undaunted #88

Kyogre & Groudon LEGEND (#88) is a powerhouse in every sense, currently sitting at $133.68. This card captures the essence of these two titans in a vibrant illustration that makes it feel like a scene straight out of a blockbuster movie. The artwork is bursting with color, from Kyogre’s deep blues to Groudon’s fiery reds. As a LEGEND card, it has a strong presence in competitive play, typically seen in decks that capitalize on synergy between water and ground types. While its price has seen some dips, it appears to be stabilizing, making it an attractive option for investors. The pull rates for this card aren’t terrible, but finding one in mint condition can require some patience and good fortune. If you manage to pull both Kyogre & Groudon LEGEND cards, you’re basically sitting on a small fortune! This card embodies the clash of elements, making it a fantastic centerpiece for any collection.

#7

Kyogre & Groudon LEGEND

#87 · LEGEND · Holofoil

$122.36

Market Price

Kyogre & Groudon LEGEND - HS—Undaunted #87

Kyogre & Groudon LEGEND (#87) is the counterpart to the previous card, valued at $122.36. While it shares the same stunning artwork, the pricing reflects the competitive meta where this card sometimes takes a backseat. That said, the card is still an absolute gem, featuring the same eye-popping colors and artistic flair that makes these LEGEND cards so desirable. Competitive players have found ways to include it in various strategies, but the hype trains tend to favor its sibling (#88). Over time, this card's price has moved in tandem with the rest of the LEGEND series — some fluctuations, but nothing too drastic. Pull rates are fairly similar, making it an achievable target for collectors. If you’re building a LEGEND-themed deck, this card is non-negotiable; its synergy with other cards is undeniable. Grab one now before it picks up steam as collectors start to recognize its value.

#8

Slowpoke

#66 · Common · Reverse Holofoil

$99.99

Market Price

Slowpoke - HS—Undaunted #66

Now let’s talk about Slowpoke (#66), the big surprise at $99.99 for a Reverse Holofoil. Yes, you read that right — this seemingly innocent Common card is fetching nearly a hundred bucks. Why? It’s all about that nostalgia factor. This Reverse Holofoil artwork has captured hearts with its charming depiction of Slowpoke and somehow became a collector’s darling. With a pull rate that’s easier compared to the Rare or Prime cards, many collectors have snatched these up, driving demand and prices up. While you might not see it pop up in serious competitive decks, its part-time charm makes it a must-have for casual collectors who want to feel the joy of nostalgia. It’s a card that shows that sometimes, the simplest ones can pack the biggest emotional punch. So if you see one, don’t underestimate its value – it might just be the cutest investment you ever make!

#9

Alph Lithograph

#THREE · Rare Secret · Holofoil

$91.19

Market Price

Alph Lithograph - HS—Undaunted #THREE

Alph Lithograph (#THREE) is one of the unique Trainer cards in this set, currently valued at $91.19. As a Rare Secret card, it stands out in a sea of Pokémon cards, appealing to collectors and players alike. Its artwork features a beautiful design that looks like it belongs in a museum — it’s that elegant. Competitive players find value in this card's ability to manipulate game mechanics, which gives it a place in various strategies. Over the years, the card's price has shown slow growth, helped by the secret rarity and its cool factor. Pull rates make it a little tougher to find but not impossible. Unlike other Trainer cards that fade into the background, this one has character and charm, making it a worthy addition to any collection. Keep your eyes peeled; this card is a testament to how Trainer cards can stand out among Pokémon.

#10

Raichu

#83 · Rare Prime · Holofoil

$87.79

Market Price

Raichu - HS—Undaunted #83

Last but not least, we have Raichu (#83), available at a solid $87.79. This Rare Prime card features Raichu in a dynamic pose that just screams ‘I’m ready for battle!’ The electrifying artwork truly captures Raichu's essence and has made it a desired card among collectors and players alike. While it may not hit the heights of Umbreon or Espeon, Raichu’s competitive playability has kept it relevant. It often finds a home in Lightning-type decks, providing solid strategy support and hitting hard when needed. Its price has shown some consistency over the years, appealing to both nostalgia and competitive players. Pull rates are decent, which means avid collectors can actually find this card in packs without driving their wallets into the ground. Raichu is like that reliable friend who always shows up; you can count on it to deliver both in-game and in your collection!

The market for HS—Undaunted has remained intriguing, with both collectors and players keeping a watchful eye on these cards. While some like Umbreon and Rayquaza & Deoxys LEGEND continue to skyrocket in value, others, like Slowpoke, remind us that sometimes the underdogs have their moment in the sun. If you’re considering purchasing, focus on the Rare Prime cards for a balance of gameplay and collector value. Cards like Espeon and Houndoom are solid investments, while others like Raichu might be a good pickup while the price is still reasonable. However, be wary of the ones that are overvalued; just because it has a pretty picture doesn’t mean it’s going to pay off. Ultimately, HS—Undaunted is worth exploring. Whether you're tearing through packs in search of nostalgia or hunting for the next big investment, there’s something here for everyone. Remember, in the world of Pokémon TCG, a little luck and a lot of love can go a long way!

AK
Alek Koch

Pokémon TCG analyst and price guide writer at PokedexWiki. Covers market trends, chase cards, and set reviews with a sharp eye and a sense of humor.

Prices updated automatically. Last article refresh: April 8, 2026

Market prices sourced from TCGPlayer. Affiliate links may earn us a commission at no cost to you.

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