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.

Ditto · Detective Pikachu 17/18

Ditto (Detective Pikachu 17/18), Ultra Rare, Basic, 60 HP. Market price €7.46, up 3.2% this week. Illustrated by MPC Film. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

While it can transform into anything, each Ditto apparently has its own strengths and weaknesses when it comes to transformations.

Card text

Copy Anything — Choose 1 of your opponent’s Pokémon’s attacks and use it as this attack. If this Pokémon doesn’t have the necessary Energy to use that attack, this attack does nothing.

Weekly price history

Week	Market price
2026-W31	€6.60
2026-W32	€6.96
2026-W33	€7.07
2026-W34	€7.19
2026-W35	€7.19
2026-W36	€7.29
2026-W37	€7.44
2026-W38	€7.23
2026-W39	€7.46

Questions

How much is Ditto 17/18 worth?

Ditto from Detective Pikachu (17/18) has a market estimate of €7.46, up 3.2% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Ditto 17/18 rare?

It is an Ultra Rare from Detective Pikachu, a 18-card set.

Is Ditto 17/18 tournament legal?

Ditto 17/18 is legal in Expanded.

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