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.

Tentacruel · Aquapolis 38/147

Tentacruel (Aquapolis 38/147), Rare, Stage1, 70 HP. Market price €71.53, up 4.6% this week. Illustrated by Hajime Kusajima. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Card text

Poke-POWER: Strange Tentacles — Once during your turn (before your attack), as long as the number of Energy cards attached to the Defending Pokémon is less than the number of Energy cards attached to your Active Pokémon, you may choose an Energy card, if any, in your opponent's discard pile and attach it to the Defending Pokémon. This power can't be used if Tentacruel is affected by a Special Condition.
Poison Sting 20 — Flip a coin. If heads, the Defending Pokémon is now Poisoned.

Weekly price history

Week	Market price
2026-W31	€56.60
2026-W32	€56.80
2026-W33	€56.80
2026-W34	€58.57
2026-W35	€58.57
2026-W36	€69.65
2026-W37	€69.95
2026-W38	€68.38
2026-W39	€71.53

Printings & variants

Normal — $14.38
Reverse Holo — $39.99

Questions

How much is Tentacruel 38/147 worth?

Tentacruel from Aquapolis (38/147) has a market estimate of €71.53, up 4.6% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Tentacruel 38/147 rare?

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

Is Tentacruel 38/147 tournament legal?

Tentacruel 38/147 has rotated out of the current formats.

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