The most expensive card in the EX Delta Species set is Groudon #111/113, valued at approximately $972.67, making it significantly pricier than nearly every other card in this 2005 release. However, when discussing “Holon’s Castform and the Most Expensive Cards,” there’s an important clarification: Holon’s Castform is not actually from the EX Delta Species set at all—it comes from the later EX Holon Phantoms set and currently trades for just $4.65.
This article clarifies the distinction between these two sets while exploring which cards from EX Delta Species command the highest prices, what drives their value, and what the actual market activity looks like for collectors today. The EX Delta Species set, released on October 31, 2005, contains 114 cards and remains one of the more interesting releases from the mid-2000s Pokemon Trading Card Game era. While Groudon dominates the price charts, the set contains other valuable cards worth understanding if you’re building a collection or evaluating your existing cards.
Table of Contents
- What Are the Most Expensive Cards in EX Delta Species?
- Understanding the Market Reality for Delta Species Cards
- The Holon’s Castform Confusion—A Different Set Entirely
- Most-Traded Cards and Market Activity
- Grading’s Dramatic Impact on Delta Species Prices
- Rarity Factors Within EX Delta Species
- Collecting Strategy and Long-Term Outlook
- Conclusion
What Are the Most Expensive Cards in EX Delta Species?
The price hierarchy in EX Delta Species is heavily dominated by Groudon #111/113, which stands apart from other cards in the set by a massive margin. At nearly $973, this card is worth roughly 22 times more than the next most valuable cards in the set, creating a dramatic price tier. The second-tier valuable cards include Tyranitar #16/113 at approximately $43.45, which is still respectable but nowhere near Groudon’s stratosphere.
Following Tyranitar, Ditto #61/113 sits at around $11.04—a more modest price point that many collectors find more accessible. This extreme price disparity is unusual and worth examining. Groudon’s legendary status in the Pokemon franchise, combined with its rarity within the set and collector demand, creates a perfect storm for high pricing. When you’re evaluating Delta Species cards, expect that most of your collection will be considerably more affordable than the headline Groudon price suggests.

Understanding the Market Reality for Delta Species Cards
While Groudon’s $972.67 price point captures attention, it’s crucial to understand what the typical Delta Species card actually costs. Market data from the last 30 days shows that an average of 41 cards from this set traded on eBay with an average price of $13.06. This median tells a much different story than the Groudon outlier—it means most cards in the set are moving at prices well below $20, making the set more accessible to average collectors than the headline prices suggest. However, there’s an important caveat: pricing data can be heavily influenced by condition and grading.
A card graded PSA 10 versus a raw, ungraded card of the same card can differ dramatically in price. The $972.67 Groudon price likely represents a high-grade specimen, possibly a PSA 9 or 10. An ungraded or lower-grade Groudon could cost a fraction of this amount, though still commanding a premium. This condition variance is something to keep in mind when shopping, as a more affordable Groudon might still exist if you’re willing to accept lower grades.
The Holon’s Castform Confusion—A Different Set Entirely
A common point of confusion in Pokemon card collecting involves Holon’s Castform, which is frequently mentioned alongside EX Delta Species discussions. The critical fact is this: Holon’s Castform #44 comes from the EX Holon Phantoms set, not EX Delta Species. These are two entirely different sets released in different years, yet collectors often conflate them when researching expensive cards.
Holon’s Castform currently trades for $4.65, placing it far below even mid-tier Delta Species cards like Tyranitar. This distinction matters because it prevents collectors from wasting time searching for a card that simply doesn’t exist in the set they’re researching. If you’re building a Delta Species collection, Holon’s Castform is not part of your target set. If you’re researching cards specifically because you own one, identifying which set your card is from is the first essential step in determining its actual value and rarity status.

Most-Traded Cards and Market Activity
While Groudon is the most expensive card in EX Delta Species, it’s not the most actively traded. Instead, Ditto #35/113 emerged as the most-traded card in the last 30 days, with three completed sales averaging $7.90 per copy. This distinction reveals something important about the market: cards that are both reasonably priced and appealing to collectors tend to move more frequently than ultra-expensive, narrow-appeal cards. Ditto’s more moderate price point makes it accessible, and its iconic status in the Pokemon universe keeps collector interest steady.
The fact that only 41 cards from the entire Delta Species set traded in 30 days suggests this isn’t a heavily liquid market. For comparison, popular modern sets can see thousands of transactions daily. This lower trade volume means Delta Species cards can take time to sell if you’re looking to offload your collection. Patience and realistic pricing are essential when selling these older cards—you may need to adjust expectations or hold inventory longer than you would for more recent releases.
Grading’s Dramatic Impact on Delta Species Prices
Card condition and professional grading have an outsized effect on Delta Species pricing, particularly for high-value cards like Groudon. The $972.67 price for Groudon almost certainly represents a card that has been professionally graded by PSA, Beckett, or CGC—probably in the PSA 8 to PSA 10 range. A raw, ungraded copy of the same Groudon could sell for half that price or less, while a PSA 10 could actually exceed it.
This creates a significant valuation cliff where grading becomes not just a nice-to-have but a critical factor in realized value. There’s an important limitation to consider, however: not every card benefits equally from grading. For the lower-tier Delta Species cards trading at single-digit prices, paying $10-$20 to get a card professionally graded often doesn’t make financial sense—the grading cost could exceed the card’s value premium. Collectors should reserve grading services for cards they believe have genuine value and condition that justifies the expense.

Rarity Factors Within EX Delta Species
The EX Delta Species set’s 114-card composition includes cards of varying rarity, from common reverse holos to rare holos to the ultra-rare ex cards. The ex designation alone (which appears in cards like the Groudon and Tyranitar) made these cards more valuable from their release, as ex cards carried a mechanical penalty in gameplay—they gave up two prize cards when knocked out—but earned collector prestige in return.
Understanding the rarity symbols on your Delta Species cards helps explain some of the price variance you’ll observe. An example of this in action: a common reverse holo Castform from Delta Species (different from Holon’s Castform in Holon Phantoms) might cost just a few dollars, while holos of more popular Pokemon command significantly more. The set’s age—now nearly 20 years old—also contributes to price volatility, as surviving cards in excellent condition become scarcer each year as collections deteriorate or cards are lost to time.
Collecting Strategy and Long-Term Outlook
For collectors considering Delta Species as a collecting target, the high price concentration in just a few cards suggests a few strategic approaches. You could chase the big fish like Groudon if you have the budget, but understand you’re paying for extreme rarity and condition. Alternatively, building a diverse Delta Species collection focused on cards in the $5-$20 range is more realistic for most collectors and still captures the appeal of this 2005 set.
The secondary market for EX Delta Species shows stable if modest demand—not explosive growth, but also no signs of collapse. As this set ages and populations of mint-condition cards shrink naturally, values may appreciate slowly over time, though historical precedent suggests early 2000s sets appreciate at rates well below modern sealed products or truly rare vintage cards. For collectors, the primary value lies in owning a piece of Pokemon TCG history rather than expecting explosive returns.
Conclusion
EX Delta Species features Groudon #111/113 as its clear price leader at nearly $973, followed by more modest valuations for most other cards in the set, with typical cards averaging $13.06 in recent sales. The critical takeaway is that headline prices often misrepresent the actual collector experience—most Delta Species cards are accessible at reasonable prices, not the premium prices that Groudon commands. Understanding the difference between EX Delta Species and other sets like EX Holon Phantoms (which contains Holon’s Castform at $4.65) is essential for accurate research and valuation.
If you own cards from this set, condition and professional grading dramatically impact value, particularly for higher-end cards. For new collectors interested in Delta Species, building a collection around affordably-priced cards in the $5-$25 range offers both the appeal of a classic set and realistic economics. The relatively low trade volume suggests patience is required when buying or selling, but the stable market indicates Delta Species remains a respected and reasonably stable part of the Pokemon TCG secondary market.


