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.

Walrein · Hidden Legends 15/101

Walrein (Hidden Legends 15/101), Holo Rare, Stage2, 120 HP. Market price €8.92, up 3.0% this week. Illustrated by Atsuko Nishida. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Card text

Poke-POWER: Crush Draw — Once during your turn (before your attack), you may reveal the top card of your deck. If that card is a basic Energy card, attach it to 1 of your Pokémon. If not, put the card back on your deck. This power can't be used if Walrein is affected by a Special Condition.
Sheer Cold 50 — Flip a coin. If heads, each Defending Pokémon can't attack during your opponent's next turn.

Weekly price history

Week	Market price
2026-W31	€6.39
2026-W32	€7.19
2026-W33	€7.19
2026-W34	€7.74
2026-W35	€7.74
2026-W36	€7.89
2026-W37	€7.90
2026-W38	€8.66
2026-W39	€8.92

Printings & variants

Holo — $16.53
Reverse Holo — $36.31

Questions

How much is Walrein 15/101 worth?

Walrein from Hidden Legends (15/101) has a market estimate of €8.92, up 3.0% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Walrein 15/101 rare?

It is a Holo Rare from Hidden Legends, a 101-card set.

Is Walrein 15/101 tournament legal?

Walrein 15/101 has rotated out of the current formats.

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