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.

Dark Slowking · Team Rocket Returns 9/109

Dark Slowking (Team Rocket Returns 9/109), Rare, Stage1, 80 HP. Market price €45.48, up 1.9% this week. Illustrated by Kouki Saitou. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Card text

Poke-POWER: Cunning — Once during your turn (before your attack), you may look at the top card of your opponent's deck. Then, you may shuffle his or her deck. This power can't be used if Dark Slowking is affected by a Special Condition.
Litter 20+ — You may discard a combination of up to 2 Pokémon Tool cards and Rocket's Secret Machine cards from your hand, and then do 20 damage plus 30 more damage for each card you discarded.

Weekly price history

Week	Market price
2026-W31	€40.47
2026-W32	€41.99
2026-W33	€41.99
2026-W34	€42.28
2026-W35	€42.28
2026-W36	€42.28
2026-W37	€44.50
2026-W38	€44.65
2026-W39	€45.48

Printings & variants

Holo — $118.11
Reverse Holo — $117.98

Questions

How much is Dark Slowking 9/109 worth?

Dark Slowking from Team Rocket Returns (9/109) has a market estimate of €45.48, up 1.9% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Dark Slowking 9/109 rare?

It is a Rare from Team Rocket Returns, a 109-card set.

Is Dark Slowking 9/109 tournament legal?

Dark Slowking 9/109 has rotated out of the current formats.

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