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.

Blunder Policy · Brilliant Stars 131/172

Blunder Policy (Brilliant Stars 131/172), Uncommon. Market price €0.03, unchanged this week. Illustrated by Ayaka Yoshida. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Card text

If the Pokémon this card is attached to uses an attack, if you flip any coins for the damage or effect of that attack, and if any of them are tails, draw 3 cards at the end of your turn.

Weekly price history

Week	Market price
2026-W31	€0.04
2026-W32	€0.04
2026-W33	€0.04
2026-W34	€0.04
2026-W35	€0.04
2026-W36	€0.03
2026-W37	€0.03
2026-W38	€0.03
2026-W39	€0.03

Printings & variants

Normal — $0.07
Reverse Holo — $0.18

Questions

How much is Blunder Policy 131/172 worth?

Blunder Policy from Brilliant Stars (131/172) has a market estimate of €0.03, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Blunder Policy 131/172 rare?

It is an Uncommon from Brilliant Stars, a 172-card set.

Is Blunder Policy 131/172 tournament legal?

Blunder Policy 131/172 is legal in Expanded.

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