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.

Poliwhirl · Sun & Moon 31/149

Poliwhirl (Sun & Moon 31/149), Uncommon, Stage1, 90 HP. Market price €0.13, down 13.3% this week. Illustrated by Atsuko Nishida. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

It marches over the land in search of bug Pokémon to eat. Then it takes them underwater so it can dine on them where it's safe.

Card text

Double Slap 30× — Flip 2 coins. This attack does 30 damage for each heads.
Wave Splash 60

Weekly price history

Week	Market price
2026-W31	€0.15
2026-W32	€0.15
2026-W33	€0.15
2026-W34	€0.16
2026-W35	€0.16
2026-W36	€0.16
2026-W37	€0.15
2026-W38	€0.15
2026-W39	€0.13

Printings & variants

Normal — $0.25

Questions

How much is Poliwhirl 31/149 worth?

Poliwhirl from Sun & Moon (31/149) has a market estimate of €0.13, down 13.3% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Poliwhirl 31/149 rare?

It is an Uncommon from Sun & Moon, a 149-card set.

Is Poliwhirl 31/149 tournament legal?

Poliwhirl 31/149 is legal in Expanded.

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