The 10 Most Expensive Cards in Forbidden Light

AK
Alek Koch
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Updated April 8, 2026
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10 cards ranked

Released in May 2018, the "Forbidden Light" set marked a significant chapter in the Pokémon TCG history, representing the Sun & Moon series’ transition into more intricate gameplay mechanics and thematic depth. With 131 cards and several secret rares, this set introduced players to the concept of Ultra Beasts and the powerful new GX mechanics that would define competitive play for years to come. Fans were treated to stunning artwork from some of the most talented artists in the game, blending dynamic action poses with mesmerizing backgrounds. The set’s unique narrative, centering around the Ultra Beasts and their mysterious origins, added an alluring layer for collectors and players alike.

In terms of market dynamics, Forbidden Light has seen a varied trajectory, with some cards skyrocketing in price due to competitive relevance and chase factor, while others languish at lower values. The overall market for this set has been quite active, prompting players to hunt for those coveted GX cards that have both gameplay potential and aesthetic appeal. As we dive into the top ten most expensive cards from this set, get ready to see why certain creatures and trainers are worth their weight in gold, or at least a good chunk of change. Spoiler: the big hitters will have you reconsidering your bank balance and how you view your collection.

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#1

Lucario-GX

#135 · Rare Rainbow · Holofoil

$115.35

Market Price

Lucario-GX - Forbidden Light #135

The Lucario-GX (#135) is not just a pretty face in the Pokémon universe; it commands a whopping $115.35 due to its status as a fan-favorite and competitive beast. This card's appeal lies in its striking rainbow art, brought to life by the talented artist, Hitoshi Ariga. The dynamic pose of Lucario delivers all the power and intensity you'd expect from this Fighting-type champ. On the competitive scene, Lucario-GX has garnered attention for its versatility and synergy in various decks, especially those running Fighting-type strategies, making it a staple card for players looking to dominate the meta. Historically, Lucario-GX's price has shown resilience, climbing steadily over time as its competitive viability has been validated through tournaments. Pull rates for this card are not the easiest, which adds to its chase factor — good luck finding this in a random pack. For collectors, its combination of gameplay relevance and stunning artwork makes it a must-have. If you're willing to drop serious cash, this is one investment that could make your collection shine — just don't show it to your landlord.

#2

Greninja-GX

#133 · Rare Rainbow · Holofoil

$101.78

Market Price

Greninja-GX - Forbidden Light #133

Coming in hot at $101.78, Greninja-GX (#133) is another exceptional card that captures both collector attention and competitive viability. The allure of this card isn’t just in its beautiful holofoil, but also in Greninja's iconic status as a beloved Pokémon. With artwork that captures its stealthy and agile nature, likely illustrated by the same artist duo that brought many fan-favorites to life, this card visually pops, making it a centerpiece for any collection. In gameplay, Greninja-GX is a force to be reckoned with, finding its place in various Water-type decks. Its ability to dish out damage while providing utility has made it a solid choice for trainers looking to win. The price has fluctuated with the competitive scene but has shown resilience in the face of newer sets. Pulling this rare beauty isn’t a walk in the park, making it a genuine chase card. Overall, if you can snag a Greninja-GX, you’re not just buying a card; you’re securing a piece of TCG history that’s bound to keep your opponents on their toes.

#3

Dialga-GX

#138 · Rare Rainbow · Holofoil

$76.69

Market Price

Dialga-GX - Forbidden Light #138

Dialga-GX (#138) has a little time-traveling magic of its own, flaunting a market price of $76.69. This Rare Rainbow card packs a visual punch with artwork that captures Dialga's majestic presence and intricate details, likely crafted by an artist who knows how to convey power. It's not just about looks, though; Dialga-GX has made a name for itself in competitive play. Its ability to manipulate time and turn the tide of battle makes it a strategic choice for many players. The price has seen a bit of a rise lately, influenced by its ability to fit into various deck archetypes, most notably those that capitalize on time-based strategies. Pull rates are decent, but you'll still need some luck to add this to your collection. Dialga-GX represents more than just a card; it’s a pivotal part of any collection focused on legendary Pokémon. Investing in Dialga may not make your wallet cry, but it definitely will give your deck a time-traveling advantage.

#4

Xerneas-GX

#139 · Rare Rainbow · Holofoil

$66.54

Market Price

Xerneas-GX - Forbidden Light #139

Xerneas-GX (#139) rounds out the top four at $66.54, and it’s no wonder why collectors are enchanted. This gorgeous card features artwork that radiates the mythical energy of Xerneas, illustrated with a flair that captures its fairy essence beautifully. The shimmering details make it a true standout piece. Xerneas-GX is not just a pretty card; it's also a solid player in Fairy-type decks. Its ability to heal and buff its allies makes it a strategic choice for trainers looking to build resilient teams. Its price point reflects both competitive utility and artistic value, and historically, it has been a solid asset in any collection. Pulling Xerneas-GX isn’t overly difficult, which adds to its acquisition allure. If you’re aiming for a blend of beauty and brawn, this card should definitely make it onto your list.

#5

Zygarde-GX

#136 · Rare Rainbow · Holofoil

$53.83

Market Price

Zygarde-GX - Forbidden Light #136

Zygarde-GX (#136) holds the fifth spot with a market price of $53.83. This card’s artwork encapsulates the essence of Zygarde in its various forms, blending vibrant colors with powerful aesthetics. The illustration pulls you in and evokes the kind of admiration usually reserved for blockbuster movie posters. From a competitive standpoint, Zygarde-GX has carved its niche with its ability to dish out respectable damage while providing defensive options. It’s a viable choice for players looking to utilize Ground-type decks effectively. The price has been relatively stable, reflecting its ongoing relevance in play. Pulling this card is a treat – it’s not the rarest, but it’s still coveted. For collectors and players alike, Zygarde-GX is a solid choice, combining aesthetic appeal with functional gameplay.

#6

Greninja-GX

#120 · Rare Ultra · Holofoil

$53.47

Market Price

Greninja-GX - Forbidden Light #120

Greninja-GX (#120), priced at $53.47, is another variant worth your attention. This Rare Ultra card showcases an alternative artwork that captures Greninja’s elusive nature. The vivid colors and dynamic pose breathe life into the card, making it a delightful addition to any collection. In competitive circles, this Greninja variant has its own signature abilities that allow for strategic plays, giving players options to tilt matches in their favor. Its price has seen fluctuations, but it remains a favorite due to its utility in multiple deck archetypes. Pull rates are fairly balanced, making it attainable without completely breaking the bank. If you have a soft spot for Greninja, grabbing this card could be a no-brainer — just maybe don’t go all-in and leave yourself broke.

#7

Yveltal-GX

#137 · Rare Rainbow · Holofoil

$44.73

Market Price

Yveltal-GX - Forbidden Light #137

At $44.73, Yveltal-GX (#137) is a card that feels like a breath of fresh villainy. The artwork is dark and brooding, perfectly fitting for a Pokémon that thrives on destruction. The dramatic pose captures Yveltal’s essence beautifully, likely crafted by an artist who specializes in portraying the darker side of Pokémon. Yveltal-GX has found its place in various competitive decks, especially those capitalizing on its ability to deal significant damage. The card has remained relatively steady in the market, appealing to both collectors and players. Pull rates are decent, so adding this beauty to your roster isn’t as daunting. If you love the power of darkness or just want to give your opponents the heebie-jeebies, Yveltal-GX is a solid pickup.

#8

Ultra Necrozma-GX

#140 · Rare Rainbow · Holofoil

$41.64

Market Price

Ultra Necrozma-GX - Forbidden Light #140

Ultra Necrozma-GX (#140) comes in at $41.64, and boy does it pack a punch. The artwork is a kaleidoscope of energy and light, showcasing Necrozma in its ultra form with a dazzling array of colors that almost make you feel like you’re staring into the sun. This piece is a triumph of artistic vision. In competitive play, Ultra Necrozma-GX has carved out a niche thanks to its high damage potential and ability synergy. Its price has been climbing steadily as players recognize its value in powerful decks, especially those looking for explosive finishes. It’s not the easiest card to pull from packs, which enhances its collector appeal. As a dual-purpose card, Ultra Necrozma-GX is one to watch — it’s got the looks and the competitive chops.

#9

Diantha

#130 · Rare Ultra · Holofoil

$40.52

Market Price

Diantha - Forbidden Light #130

Diantha (#130), priced at $40.52, is the lone trainer in our lineup, but it holds its own as a Rare Ultra card. The artwork here is a beautiful representation of the character, combining elegance with a sense of authority, making it a visually stunning addition to any collection. In terms of gameplay, Diantha offers valuable support, allowing players to retrieve Pokémon from the discard pile, making it a key component in decks that focus on recycling resources. The price has shown consistent strength, driven by its utility. Pull rates for this card are reasonable, but you might need to sift through some packs before you find the right one. For collectors who love trainer cards or want a solid support piece, Diantha is a wise investment.

#10

Palkia-GX

#132 · Rare Rainbow · Holofoil

$38.87

Market Price

Palkia-GX - Forbidden Light #132

Rounding out the top ten, Palkia-GX (#132) is available at $38.87. The artwork is a tribute to Palkia’s status as a legendary Pokémon, showcasing its grandeur and power in a way that is both eye-catching and awe-inspiring. The artist has beautifully captured the essence of space and time, which is a fitting theme for this card. From a competitive standpoint, Palkia-GX finds its space in Water-type decks and has some intriguing abilities that can turn the tide of battle. Its price has remained stable, appealing to both collectors and players alike. Pull rates are not excessively high, making it a feasible but still coveted addition. If Palkia resonates with you, don’t hesitate — adding this card could enhance both your collection and gameplay strategy.

The current state of the Forbidden Light market shows a mix of competitive cards and collector favorites, making it a fascinating set to explore. With several cards steadily increasing in value, it's clear that savvy collectors and players alike see the potential in these beauties. However, with prices fluctuating, keep an eye on the market to identify when a card is undervalued before it skyrockets. If you're looking for a good buy, Lucario-GX and Greninja-GX are solid picks, while some cards like Yveltal-GX might be nearing their ceiling.

As always, it’s about finding that balance between collecting for the love of the game and making strategic investments. Whether you’re a player looking to dominate at tournaments or a collector with an eye for art, Forbidden Light has something for everyone. So, get out there, grab some packs, and may your pulls be ever in your favor!

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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