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?

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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 · Aquapolis 84/147

Horsea (Aquapolis 84/147), Common, Basic, 40 HP. Market price €2.70, up 8.4% this week. Illustrated by Hisao Nakamura. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Card text

Bubble 10 — Flip a coin. If heads, the Defending Pokémon is now Paralyzed.

Weekly price history

Week	Market price
2026-W31	€2.46
2026-W32	€2.36
2026-W33	€2.36
2026-W34	€2.62
2026-W35	€2.52
2026-W36	€2.56
2026-W37	€2.67
2026-W38	€2.49
2026-W39	€2.70

Printings & variants

Normal — $9.67
Reverse Holo — $49.99

Questions

How much is Horsea 84/147 worth?

Horsea from Aquapolis (84/147) has a market estimate of €2.70, up 8.4% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Horsea 84/147 rare?

It is a Common from Aquapolis, a 147-card set.

Is Horsea 84/147 tournament legal?

Horsea 84/147 has rotated out of the current formats.

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