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 · Steam Siege 86/114

Hydreigon (Steam Siege 86/114), Rare, Stage2, 150 HP. Market price €4.86, up 0.4% this week. Illustrated by Hideki Ishikawa. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

It responds to movement by attacking. This scary, three-headed Pokémon devours everything in its path!

Card text

Cruel Fang 40 — During your opponent's next turn, any damage done by attacks from the Defending Pokémon is reduced by 40 (before applying Weakness and Resistance).
Dark Burn 50× — Discard as many Darkness Energy attached to your Pokémon as you like. This attack does 50 damage times the amount of Darkness Energy you discarded in this way.

Weekly price history

Week	Market price
2026-W31	€4.21
2026-W32	€4.37
2026-W33	€4.59
2026-W34	€4.79
2026-W35	€4.79
2026-W36	€4.72
2026-W37	€4.74
2026-W38	€4.84
2026-W39	€4.86

Questions

How much is Hydreigon 86/114 worth?

Hydreigon from Steam Siege (86/114) has a market estimate of €4.86, up 0.4% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Hydreigon 86/114 rare?

It is a Rare from Steam Siege, a 114-card set.

Is Hydreigon 86/114 tournament legal?

Hydreigon 86/114 is legal in Expanded.

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