When I first came across the Steam Siege expansion, I felt it immediately stood out for its creative mix of dual-type Pokémon and artwork that brought something fresh to the game.
As both a player and a collector, I was drawn to the way the set blended nostalgic designs from earlier series with new mechanics that added exciting twists to battles.
Steam Siege is part of the XY series and introduced cards that carried both strategic value and incredible visual appeal.
It quickly became a favorite among collectors who appreciated its unique illustrations and players seeking to research new combinations in matches.
In this blog, I’ll take you through the full card list and highlight what makes each card significant, so you can fully understand the lasting appeal of this remarkable expansion.
What Makes Steam Siege Special?
The Steam Siege set became well known for bringing in dual-type cards, giving Pokémon the ability to draw strength from two energy types at once.
This addition reshaped battles by requiring more careful planning and creating fresh opportunities for strategy. The artwork captured a blend of industrial and fiery themes, staying true to the identity of the expansion.
Collectors appreciated the striking holo patterns, while players valued cards that could change the course of a match with creative energy combinations.
With more than one hundred cards, the set featured Pokémon from different generations along with impactful Trainers and Energy cards.
Steam Siege is remembered for combining strong visual design with meaningful gameplay, leaving a lasting impression on both players and collectors. Its creative features made it a standout addition to the Pokémon Trading Card Game.
Complete Steam Siege Card List
Steam Siege has hundreds of dual-type cards, BREAK evolutions, and EXs, blending creative art with competitive strength. It appealed to collectors and players.
1. Volcanion EX
Volcanion EX is the signature card of Steam Siege and one of the most memorable dual-types. With Fire and Water attributes, it gave players unmatched flexibility.
Its ability allowed rapid Energy acceleration for Fire decks, fueling powerful attackers quickly. The artwork reflected explosive volcanic energy, making it visually iconic for collectors.
Competitive players valued how it boosted deck consistency, ensuring faster setups and better mid-game pressure. As a card, Volcanion EX bridged tactical depth with raw power, making it equally prized for battles and collections.
2. Magearna EX
Magearna EX was introduced in Steam Siege as a card that symbolized mechanical resilience. Its ability prevented status conditions on Pokémon with Metal Energy, a feature that provided reliable protection during matches.
This safeguard helped Metal decks hold ground against disruptive strategies, adding strong defensive utility. For collectors, Magearna’s steampunk-inspired artwork stood out, reflecting the industrial vibe of the expansion.
Players admired its strategic nature, emphasizing clever play over raw power. Magearna EX is valued for its unique artwork, reliable function, and role in the Steam Siege set.
3. Xerneas BREAK
Xerneas BREAK brought new life to Fairy decks with a radiant design and strong Energy distribution. It offered higher HP and a move that fueled multiple Pokémon at once, giving trainers faster board setups.
This ability created balanced, aggressive gameplay suitable for competition. The golden BREAK artwork added visual brilliance, making it highly collectible. Players appreciated how it expanded Fairy strategies by combining sustainability with offense.
Collectors saw it as a standout card due to its dazzling presentation. Xerneas BREAK is still remembered as one of Steam Siege’s most effective and eye-catching Fairy cards.
4. Yveltal BREAK
Yveltal BREAK delivered Darkness power with upgraded HP and enhanced attacks. Its synergy with other Yveltal cards made it especially popular in Darkness-focused decks.
The artwork captured shadowy energy, and the golden BREAK format gave it a premium look that collectors admired. Strategically, it excelled in mid to late-game scenarios, maintaining strong offensive pressure.
Players relied on Yveltal BREAK to overwhelm opponents and maintain board control. It combined aggressive play with impressive visuals, making it one of Steam Siege’s key Darkness cards. It remains respected for its design and function.
5. Gardevoir EX
Gardevoir EX appeared as a graceful yet powerful Fairy card that helped shape competitive strategies. It served as a foundation for Mega Evolution into M Gardevoir EX, making it an essential part of Fairy decks.
The card’s design balanced beauty with strength, appealing to collectors who valued stunning artwork. For players, its a combination of strong attacks and synergy with Energy acceleration that provides consistent offense.
It was one of the more reliable EX cards in Steam Siege. Gardevoir EX remains a favorite among fans for its visual charm and proven strength in competitive Pokémon battles.
6. M Gardevoir EX
M Gardevoir EX built upon the strength of its EX form, creating one of Steam Siege’s most dangerous sweepers. Its unique ability allowed players to discard unnecessary cards while powering up attacks, making strategies faster and more efficient.
The artwork reflected both Fairy and Psychic energy, creating a vibrant visual. Collectors praised its full-art design, while players relied on it for its offensive dominance.
M Gardevoir EX shifted momentum quickly, giving Fairy decks an edge. It remains one of the standout Mega Evolutions of the expansion, admired for its playability and timeless card design.
7. Talonflame
Talonflame became one of the most surprising cards in Steam Siege because of its ability to start the game in your opening hand. Its Gale Wings ability allowed players to play it as a Basic Pokémon, even though it is technically a Stage 2.
This made it one of the most consistent starters, giving players a powerful attacker early on. Its fast attack, Aero Blitz, allowed players to search their deck for any two cards, giving them a huge advantage in setup.
Talonflame’s role in shaping early-game strategies made it an important competitive card and a valuable collector’s piece.
8. Bisharp
Bisharp appeared in Steam Siege as a striking dual-type Pokémon with both Dark and Steel attributes. This combination gave it versatility and made it unique among cards of its generation.
Bisharp’s artwork was striking with its sharp metallic design, fitting the steampunk theme. Players liked its balance of offense and resilience, allowing pressure in various situations and compatibility with multiple decks.
Collectors appreciated its distinctive design and rarity within the set. Bisharp remains remembered as a creative dual-type addition that captured the essence of Steam Siege.
9. Ampharos
Ampharos in Steam Siege is a reliable Electric-type with sturdy HP and solid attack. Its moves make it flexible for casual and competitive play, helping trainers adapt to matchups.
Ampharos also benefited from a visually appealing design that showed off its glowing, electric energy. Collectors enjoyed its vibrant artwork, while players valued its utility across diverse deck styles.
Although it was not as central as some EX or BREAK cards, Ampharos stood out for being dependable and well-rounded. It continues to be seen as a fan-favorite inclusion within the set.
10. Shiftry
Shiftry in Steam Siege stood out for its Grass and Darkness dual-type, offering greater strategic options. It gained popularity for its disruptive play, able to interfere with opponents’ setups while keeping its offensive pressure.
Collectors admired its design, which captured Shiftry’s mysterious and intimidating personality. The card represented one of the more creative uses of dual-type mechanics within the expansion, combining strategy with visual appeal.
Shiftry remains a standout for its unique style of play, blending both trickery and power in a way that fits perfectly into Steam Siege.
11. Yanmega BREAK
Yanmega BREAK was one of the more competitive BREAK cards from Steam Siege. Its ability allowed players to attack without Energy costs if they held exactly four cards in hand, creating incredible speed and momentum.
This efficiency gave Yanmega decks a unique edge in tournaments, as they could apply constant pressure without a heavy setup. Collectors enjoyed the golden BREAK design that highlighted Yanmega’s wings with radiant energy.
It became one of the most sought-after cards for both play and collection. Yanmega BREAK is remembered as one of the most effective cards from Steam Siege’s BREAK lineup.
12. Hydreigon BREAK
Hydreigon BREAK added raw Darkness power to the expansion, boosting HP and attack for Dragon Energy strategies. It was useful for maintaining board presence, as its attack dealt damage and disrupted opponents’ setups.
The golden BREAK design emphasized Hydreigon’s intimidating appearance, making it an eye-catching collectible. Competitive players valued its synergy with other Darkness cards, creating decks with both strength and endurance.
Hydreigon BREAK continues to stand out as a memorable part of Steam Siege, balancing powerful effects with an impressive, collector-worthy design that made it popular among fans.
13. Clawitzer BREAK
Clawitzer BREAK expanded Water-type decks with its strong HP and useful move that spreads Energy efficiently. This ability helped players keep multiple attackers ready, improving consistency and long-term play.
The card’s golden BREAK appearance made Clawitzer look vibrant and appealing to collectors of unique Water Pokémon. In gameplay, Clawitzer BREAK provided offense and support, offering trainers flexible options.
It was not the most dominant BREAK card, but it carved out a niche for itself. Clawitzer BREAK is remembered as an underrated yet reliable card in Steam Siege for both collectors and players.
14. Special Charge
Special Charge was a Trainer card in Steam Siege that focused on resource recovery. It allowed players to shuffle two Special Energy cards from the discard pile back into the deck, ensuring sustainability in matches.
This made it valuable for decks that relied heavily on Special Energy to function effectively. Collectors may not have found it visually striking, but players recognized its importance for maintaining energy consistency.
Special Charge quickly became a staple card in many decks, highlighting how Trainer cards in Steam Siege contributed practical value. It remains a respected and reliable inclusion for gameplay.
15. Steelix EX
Steelix EX embodied strength and resilience, fitting the steampunk-inspired look of Steam Siege. As a dual-type Steel and Fighting card, it stood out for its ability to deal heavy damage while staying durable in battles.
Collectors admired its powerful metallic artwork, while players valued its offensive versatility. Steelix EX also served as the gateway to its Mega Evolution, making it even more exciting for fans.
This card reflected the expansion’s emphasis on creativity and strategic variety. Steelix EX continues to be remembered as one of the more impactful dual-type cards from the set, appealing across gameplay and collecting.
16. M Steelix EX
M Steelix EX represented one of the strongest Mega Evolutions in Steam Siege. Its attack, Canyon Axe, hit both the opponent’s Active Pokémon and their Benched Pokémon, spreading damage effectively.
With massive HP, it served as a tank that dominated matches once set up. Collectors loved the full-art design with glowing metallic tones, which emphasized its raw strength.
In competitive play, M Steelix EX was a dependable powerhouse that applied heavy pressure to opponents. It remains an iconic Mega Evolution from the expansion, combining impressive durability with offensive strength, while also standing out as a visually striking card for collectors.
17. Chandelure
Chandelure appeared in Steam Siege as a Psychic-type card that added both haunting visuals and unique gameplay mechanics. Its ability allowed players to move damage counters, giving them a way to manipulate the board creatively.
This control aspect appealed to competitive players looking for disruptive tactics. The artwork highlighted Chandelure’s eerie glow, making it a favorite among collectors.
Chandelure wasn’t the most dominant in competitions, but stood out for its clever design and spooky theme. It showcased the expansion’s variety by blending visual appeal with strategic, creative gameplay.
18. Spiritomb
Spiritomb featured in Steam Siege as a disruptive Darkness-type Pokémon that interfered with an opponent’s strategy. Its moves prevented specific evolutions, slowing down decks that relied heavily on evolving Pokémon quickly.
This made it an effective counter in certain matchups, giving players a tactical advantage. The artwork captured Spiritomb’s ghostly energy and swirling essence, adding to its appeal as a collector’s card.
Spiritomb was not a powerhouse, but its utility as a tech card made it a valuable inclusion in decks. It remains appreciated for its design and for representing the tricky, tactical side of the expansion.
19. Galvantula
Galvantula in Steam Siege is a dual Grass and Lightning card offering flexibility and uniqueness. Its attacks spread damage to multiple targets, making it effective against Bench-reliant decks.
Collectors appreciated its detailed artwork highlighting Galvantula’s electric energy and creepy design. In gameplay, Galvantula supported strategies to weaken opponents and set up stronger attackers.
It may not have been the centerpiece of the expansion, but it represented the creativity and uniqueness that made Steam Siege memorable.
20. Avalugg
Avalugg appeared as a sturdy Water-type card with high HP, fitting its icy, defensive nature. While not the strongest attacker, its role centered on soaking up damage and buying time for other Pokémon to prepare.
Collectors appreciated its striking artwork, which showed Avalugg’s icy bulk in full detail. Players who enjoyed defensive strategies valued Avalugg’s staying power, even though it was more niche in competitive settings.
It was not a flashy card, but it embodied the expansion’s variety by offering different playstyles. Avalugg remains remembered for its toughness and its beautiful icy artwork within the set.
21. Nidoking
Nidoking was introduced in Steam Siege with strong Fighting-type abilities and a design that emphasized its brute strength. Its attacks dealt heavy damage, making it an intimidating presence in matches.
Nidoking’s artwork showed its raw power, appealing to collectors who enjoyed bold and vibrant illustrations. While not the most competitive card of the set, it added nostalgic value for fans of earlier generations.
Nidoking was admired for its legacy within the Pokémon universe, and its presence in Steam Siege reinforced the expansion’s mix of classic characters and fresh gameplay elements. It remains a fan-favorite collectible.
22. Nidorino
Nidorino was included in Steam Siege as part of the evolutionary line leading to Nidoking. While it did not dominate battles, it served as an important card for evolving strategies.
Collectors valued its role in completing the evolutionary chain in the set. The artwork showed Nidorino’s aggressive, battle-ready personality. It also supported decks with Nidoking, adding deck synergy.
Though simple, Nidorino helped tie the expansion together by balancing collectible appeal with practical use. It is remembered fondly for connecting fans to classic evolutionary lines.
23. Ampharos EX
Ampharos EX was a standout Electric-type card in Steam Siege, known for its combination of high HP and strong offensive moves. It delivered both visual excitement and competitive potential.
Collectors admired the dazzling lightning-themed artwork, while players appreciated its versatility in battle. Ampharos EX also connected well with Energy acceleration strategies, giving it more consistent power during matches.
As an EX card, it held high value in collections and competitive decks alike. Ampharos EX is remembered as one of the more exciting Electric Pokémon of the expansion, balancing striking visuals with strong competitive utility.
24. Croagunk
Croagunk appeared as a basic Darkness Pokémon in Steam Siege, representing the playful yet mischievous style of the species. Though it was not a competitive powerhouse, Croagunk contributed to evolutionary strategies that relied on Toxicroak.
Collectors valued its cartoon-like artwork, which added a lighter touch compared to other darker designs in the set. For players, Croagunk provided foundational support within its evolutionary line.
It may not have been a flashy card, but it highlighted the diversity of Pokémon included in Steam Siege. Croagunk remains appreciated for its charm and its role in completing evolutionary sets.
25. Toxicroak
Toxicroak expanded upon Croagunk’s role in Steam Siege, offering players a stronger attacking option with Poison-based strategies. Its attacks disrupted opponents over time, weakening their Pokémon gradually while maintaining steady offense.
Collectors enjoyed its detailed artwork, which emphasized Toxicroak’s sinister and aggressive style. In gameplay, it was not always central to top-tier decks, but it provided consistent utility in certain matchups.
Toxicroak remains recognized as a solid mid-tier card that added flavor and depth to the expansion. Its design and strategic poison mechanics reflected the darker side of Steam Siege’s creative lineup.
26. Pyroar
Pyroar brought fiery power to Steam Siege, emphasizing offense with high-damage attacks. Its design reflected its regal and fierce lion-like personality, appealing strongly to collectors who enjoyed visually bold artwork.
In gameplay, Pyroar pressures opponents with steady Fire damage, making it a reliable choice for aggressive decks. While not as central as Volcanion EX in competition, it strengthened Fire-based strategies and offered more variety.
Collectors appreciated its vibrant design, while players valued its offensive potential. Pyroar remains one of the more memorable Fire Pokémon included in the expansion.
27. Klefki
Klefki stood out in Steam Siege for its supportive role as a Metal-type Pokémon. Its ability allowed players to attach it as a Tool card, giving Pokémon added defensive utility.
This made Klefki a clever and strategic option in gameplay, offering protection at crucial times. Collectors enjoyed its whimsical artwork, showing Klefki’s playful design alongside its utility-based theme.
Players valued how it added depth to competitive matches, even though it was not an offensive powerhouse. Klefki remains appreciated for its creativity and usefulness, standing out as one of the most inventive cards in the expansion.
28. Ninja Boy
Ninja Boy was a Trainer card in Steam Siege that gave players a flexible tool for adjusting strategies. It allowed switching a Basic Pokémon in play with another from the deck, opening up clever tactical options.
Competitive players valued this card for its ability to surprise opponents and adapt to changing situations. Collectors admired the fun, vibrant artwork that showed off the character’s playful side.
Ninja Boy stood out as one of the most practical Trainer cards from the set, offering versatility in gameplay. It remains remembered for the creative strategies it enabled in competitive formats.
29. Captivating Poké Puff
Captivating Poké Puff became one of the more memorable Trainer cards in Steam Siege. It lets players look at an opponent’s hand and place Basic Pokémon from it onto their Bench, disrupting strategies by exposing resources.
Collectors enjoyed the colorful artwork, which made the card visually appealing. Competitive players used it as a clever way to disrupt opponents while controlling the board state.
It was not a card for every deck, but in the right strategy, it proved powerful. Captivating Poké Puff remains a strong example of how Trainer cards added balance and depth to Steam Siege.
Other Notable Cards from Steam Siege
Steam Siege offered more than just its headline EX and BREAK cards. The set included many supporting Pokémon that added charm, balance, and variety to collections and battles.
- Probopass: A durable Metal Pokémon with high HP that worked well in slower decks. Its steel-inspired artwork appealed to collectors even though it was not a top-tier competitive choice.
- Bastiodon: Known for its fossil origins, this Steel-type served as a defensive wall. It fit players who enjoyed stalling tactics and collectors who liked prehistoric-themed designs.
- Druddigon: A Dragon-type card that emphasized raw attacking strength. It was a reliable mid-game attacker and admired for its bold, fierce illustration.
- Weavile: A fast Darkness-type with disruptive moves that broke up opponent strategies. Its sneaky, energetic design made it a favorite for casual play and collections.
- Samurott: A Water-type with balanced attacks that added steady pressure. While not a tournament star, its vibrant aquatic artwork kept it collectible.
- Primeape: A Fighting-type designed for aggressive damage. It offered consistent pressure in matches and gave nostalgic appeal to long-time fans.
- Mantine: A Water-type with gentle artwork and a healing role. Its ability to sustain decks in longer matches gave it a niche but valued utility.
- Fletchinder: The Stage 1 link in the Talonflame line, vital for evolution consistency. Its presence mattered more for collectors and fans completing the chain.
- Lampent: A Psychic evolution step toward Chandelure. Its haunting artwork stood out, adding collectible charm despite limited competitive use.
- Litwick: A Basic form with playful, candle-like design. While weak in battles, it was beloved by collectors for its charming look.
- Mareep: A nostalgic Electric-type with soft, simple artwork. Though basic, it tied well into Ampharos’ strategies and held sentimental value for fans.
- Flaaffy: The mid-evolution in the Ampharos line, helping decks stay consistent. Collectors appreciated its role in completing a fan-favorite evolutionary chain.
- Cobalion: A Legendary Steel-type with powerful attacks. Its artwork highlighted commanding strength, making it a collector’s favorite despite its limited competitive presence.
- Hoopa: A Darkness-type with a mischievous personality shown in colorful artwork. While not strong in tournaments, it added fun flavor and variety.
- Azumarill: A Fairy/Water dual-type with pastel artwork. It offered balance in play and gained attention for its unique dual-typing design.
- Clauncher: A Water-type Basic needed for Clawitzer BREAK. Collectors valued it for completing the line, while players used it for strategy building.
- Mankey: A Fighting-type Basic evolving into Primeape. Its lively artwork and evolutionary role gave it energy and collectible appeal.
- Nosepass: The pre-evolution of Probopass, simple yet important in Steel-based decks. Its quirky design added character to the set.
- Larvesta: A Fire-type Basic evolving into Volcarona. Its artwork captured fiery intensity, appealing to collectors and players alike.
- Volcarona: A Grass/Fire dual-type that offered status-effect utility. Its vibrant, colorful illustration made it a standout collectible.
Important Trainer and Support Cards in Steam Siege
Trainer and Support cards gave Steam Siege its depth, balancing the power of EX and BREAK Pokémon with strategy and control. These cards shaped gameplay by enabling resource recovery, disruption, and adaptability, making them indispensable for competitive players.
- Ninja Boy: Offered flexibility by switching a Basic Pokémon in play with one from the deck, creating clever surprise strategies.
- Captivating Poké Puff: Disrupted opponents by revealing their hand and forcing Basic Pokémon onto their Bench, exposing weaknesses.
- Special Charge: Recovered Special Energy cards from the discard pile, ensuring stronger decks maintained consistency in long matches.
- Klefki: Acted as a Tool card to give extra protection, helping key Pokémon survive longer during tough battles.
Conclusion
Looking back at Steam Siege, I realize how much this set shaped my progression as both a player and a collector.
The combination of dual-type cards, exciting BREAK evolutions, and powerful EX Pokémon created a balance of strategy and style that still feels special today.
I always admired how the expansion encouraged creativity in deck building while also delivering some of the most eye-catching artwork from the XY era.
Even the Trainer and Support cards, though often overlooked, added layers of depth that made matches unpredictable and fun.
Steam Siege may not always receive the same recognition as other sets, but for me, it remains one of the most memorable.
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