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.

Horsea · SVP Black Star Promos 137/225

Horsea (SVP Black Star Promos 137/225), Promo, Basic, 60 HP. Market price €1.89, up 0.5% this week. Illustrated by MAHOU. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

They swim with dance-like motions and cause whirlpools to form. Horsea compete to see which of them can generate the biggest whirlpool.

Card text

Hook 20

Weekly price history

Week	Market price
2026-W31	€1.96
2026-W32	€1.98
2026-W33	€1.98
2026-W34	€1.83
2026-W35	€1.81
2026-W36	€1.81
2026-W37	€1.87
2026-W38	€1.88
2026-W39	€1.89

Questions

How much is Horsea 137/225 worth?

Horsea from SVP Black Star Promos (137/225) has a market estimate of €1.89, up 0.5% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Horsea 137/225 rare?

It is a Promo from SVP Black Star Promos, a 225-card set.

Is Horsea 137/225 tournament legal?

Horsea 137/225 is legal in Expanded.

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