There are many myths, legends and oddities in the Sinnoh region. So much so that there is an entire game dedicated to exploring the pre-modern era region. The Pokemon TCG has also shed some light on some of these mysteries with cards depicting some of the strongest legendary duos and a replacement for the previous Pokemon archetype.

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There are many valuable cards in the Triumphant set of the Pokemon TCG, many of which go together as a set or even have unique text. If you're a collector who likes to find cards that make you feel like an archaeologist, then the Triumphant set is the perfect place to start looking.
Card values reflect the market prices available on TCG Player.com and may change over time.
10
Celebi Prime $15.51
Take a trip through time
Prime cards temporarily replaced the former Pokemon during the Heart Gold and Soul Silver era of the TCG. Celebi Prime features patterned background art and an art box with a border that looks like the Pokemon is popping out of the box.
This is a card that is good for energy acceleration while putting your opponent in a time lock. Time Circle deals 30 damage and prevents your Celebi from taking damage from Evolved Pokemon during your opponent's turn. So it speeds up the game for you and slows it down for your opponent.
9
Machamp Prime $19.75
Blows that knock you senseless
Machamp has always been the king of fighters with four arms to beat you with and a championship belt around his waist. With a sparkling eye and a background made of gold, this Machamp has powerful Moves that earn his title.

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Crushing Punch will hit any Special Energy your opponent's Pokemon have while Champ Buster can do a maximum of 150 damage if all your Benched Pokemon have damage counters. Since Machamp can draw energy from the bench, this one struggles to protect its other Pokemon.
8
Absol Prime $23.81
Bad luck everywhere
Absol may be a harbinger of bad luck in the Pokémon universe, but that doesn't mean you can't weaponize it. Absol Prime's Eye of Disaster will weaken any Basic Pokemon that your opponent benches right from their hand.
Meanwhile, Vicious Claw requires you to give up something to get something back. In this case, you must send a Pokémon from your hand to the Lost Zone to deal 70 damage to your opponent's Pokémon. With gloomy card art and interesting moves, it's no wonder this is valuable.
7
Palkia And Dialga Legend Bottom $38.70
Two Halves Of A Whole
This era of the Pokemon TCG also introduced a whole new way to collect cards. Instead of drawing a valuable card and calling it a day, some prints require you to collect two cards that form a whole.

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This card has the bottom half of Palkia and Dialga Legend. What's unique about this is that it has two types, two weaknesses, and two moves that take after the Pokémon they depict. Sudden Delete lets you bounce a Benched Pokemon back to hand, while Time Control lets you add more cards to your opponent's prize card pool.
6
Palkia And Dialga Legend Top $45.26
A top for every bottom
If you're looking for the top half of the Palkia and Dialga Legend card, you'll find that it's usually the more expensive of the two. This top half is mostly card art as the bottom half takes care of all the card text.
It has both Palkia and Dialga locked in battle as pink and blue electricity surges through their bodies. If you are going to keep these cards, you must do so with both together in your binder full of rarities.
5
Darkrai And Cresselia Legend Bottom $47.31
When sweet dreams and nightmares collide
Darkrai and Cresselia have always been Pokemon rivals due to their nature. Cresselia dispels darkness while Darkrai gives people bad dreams. Cresselia's Move, Moon's Invite, allows you to move all damage counters from your Pokemon to your opponent's Pokemon in any way you want.

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At the same time, Lost Crisis does 100 damage and sends all Pokemon knocked out by Move to the Lost Zone instead of the Discard Pile. This is a great way to cut off your opponent from Energy, Items or Pre-evolutions.
4
Mew Prime $52.81
The missing link
Mew has always been deeply rooted in Pokémon lore. It is said that all Pokemon get their DNA from it and this precious Mew allows you to copy other Moves. With a Mew zooming by, Mew Prime can use the Moves of Pokémon caught in the Lost Zone.
You can set this up with any other card that sends Pokemon to the Lost Zone or Mew's native Move. This is See Off, which allows you to search your deck for a Pokemon to put into it. It doesn't matter if the Pokemon is a Basic or a Stage Two.
3
Darkrai And Cresselia Legend Top $61.95
Complete the set
Darkrai and Cresselia Legends top half contains the art for Darkrai looming over Cresselia. Like many of the other Legend cards, the top half is mostly art, while the bottom half is mostly the text needed to use Moves.

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Since both cards are part of a set, their value tends to go up, as most players want them to show up together. With the power of Darkness and Psychic, it's an interesting pair that normally doesn't mix fighting as one in the Pokemon TCG.
2
Alph Lithograph $80.00
A card that needs to be translated
The Unown Alphabet is one of the most interesting details in the Pokemon games. These letters are composed of various Unowns that come together to form power words. In this case, the card design has the entire alphabet in the art box.
This will help you decipher the bottom text that says Alph Lithograph lets you look at all your price cards face down. This is one of the weirdest cards in the Pokemon TCG because of its design, but that also makes it valuable.
1
Gengar Prime $100.13
When ghosts rise
The most valuable card in the Heart Gold and Soul Silver: Triumphant set is Gengar Prime. This card features a Gengar with his tongue sticking out, ready for some mischief. Its Poke Body will ensure that any of your opponent's Pokemon are sent to the Lost Zone when they are knocked out.
Hurl Into Darkness is an overwhelmed Move. For just one energy, you can look at your opponent's hand and send a Pokemon you find there directly to the lost zone. This move gets stronger for each psychic energy Gengar has. This alone makes it a valuable and powerful Gengar.

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Pokemon TCG: The 10 Most Valuable Cards from the Core Set
Have you ever wondered how much your old Pokemon cards are worth? If you have the cards on this list, you're sitting on a fortune!