Can I build a deck together with friends on TCGSwap?

Yes. Every deck on TCGSwap has a Collaboration Space. You can invite up to 5 friends; they can suggest card changes, discuss ideas, and playtest proposals. You review and apply suggestions before anything changes in your deck.

How does deck collaboration work?

It works like a pull request for your deck. Collaborators open the deck editor, make their proposed changes, and submit a suggestion with a note. You get notified, open the comparison view to see exactly what they changed, and choose to apply all, cherry-pick individual cards, or decline. Nothing changes in your deck until you approve it.

Can collaborators chat and discuss the deck?

Yes. The Collaboration Space has a shared group discussion thread for the whole deck, plus a per-suggestion Q&A thread for each proposal. You can @mention teammates and link specific cards inline.

Is collaborative deck building free?

Yes, collaboration is free for all TCGSwap users during beta. You can invite up to 5 collaborators per deck.

Does TCGSwap work for MTG, Pokémon, Yu-Gi-Oh and One Piece collaboration?

Yes. The Collaboration Space supports all four games — Magic: The Gathering, Pokémon TCG, Yu-Gi-Oh and One Piece. Format validation and card prices are included for each game.

Hydreigon C · SWSH Black Star Promos SWSH138/307

Hydreigon C (SWSH Black Star Promos SWSH138/307), Promo, Basic, 110 HP. Market price €1.36, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Hydreigon (National Pokédex #635) first appeared in Pokémon Black and White (2010). Its earliest English cards in our catalogue are from 2011: Noble Victories.

Card text

Bite 30
Berserker Blade 100 — This attack also does 20 damage to 2 of your opponent's Benched Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)

Weekly price history

Week	Market price
2026-W38	€1.32
2026-W39	€1.36
2026-W40	€1.36

Printings & variants

Holo — $0.93

Price in context

Hydreigon C ranks #220 of the 307 priced cards in SWSH Black Star Promos. The median Promo in the set is €3.11. The 307 priced cards in SWSH Black Star Promos are worth €4929.72 together; this card is less than 0.1% of that. The set’s value is unchanged this week. Over the last 10 weeks the set’s value went from €4850.10 to €4182.87 (-13.8%).

Top chases in SWSH Black Star Promos

Charizard SWSH066 — €168.65
Gengar SWSH052 — €141.27
Champions Festival SWSH296 — €133.79
Vaporeon VMAX SWSH182 — €127.45
Vaporeon V SWSH181 — €90.91

Set value over 10 weeks · same 285 cards each week
Week	Set value
2026-W31	€4850.10
2026-W32	€4834.82
2026-W33	€4836.18
2026-W34	€4769.37
2026-W35	€4757.35
2026-W36	€4675.83
2026-W37	€4470.66
2026-W38	€4188.00
2026-W39	€4182.87
2026-W40	€4182.87

More from SWSH Black Star Promos

← Previous card: Light Toxtricity SWSH137 · Next card: Pikachu V-UNION SWSH139 →

This card in other languages: Español · Français

Questions

How much is Hydreigon C SWSH138/307 worth?

Hydreigon C from SWSH Black Star Promos (SWSH138/307) has a market estimate of €1.36, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Hydreigon C SWSH138/307 rare?

It is a Promo from SWSH Black Star Promos, a 307-card set.

Is Hydreigon C SWSH138/307 tournament legal?

Hydreigon C SWSH138/307 is legal in Expanded.

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