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.

Greninja · Detective Pikachu 9/18

Greninja (Detective Pikachu 9/18), Ultra Rare, Stage2, 140 HP. Market price €7.26, down 3.7% this week. Illustrated by MPC Film. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

It creates throwing stars out of compressed water. When it spins them and throws them at high speed, these stars can split metal in two.

Card text

Ability: Evasion Jutsu — If any damage is done to this Pokémon by attacks, flip a coin. If heads, prevent that damage.
Furious Shurikens — This attack does 50 damage to 2 of your opponent’s Pokémon. (Don’t apply Weakness and Resistance for Benched Pokémon.)

Weekly price history

Week	Market price
2026-W31	€7.01
2026-W32	€7.26
2026-W33	€7.45
2026-W34	€7.52
2026-W35	€7.52
2026-W36	€7.73
2026-W37	€7.74
2026-W38	€7.54
2026-W39	€7.26

Questions

How much is Greninja 9/18 worth?

Greninja from Detective Pikachu (9/18) has a market estimate of €7.26, down 3.7% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Greninja 9/18 rare?

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

Is Greninja 9/18 tournament legal?

Greninja 9/18 is legal in Expanded.

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