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.

Holon Circle · Crystal Guardians 79/100

Holon Circle (Crystal Guardians 79/100), Uncommon. Market price €0.81, unchanged this week. Illustrated by Ryo Ueda. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Card text

This card stays in play when you play it. Discard this card if another Stadium card comes into play. If another card with the same name is in play, you can't play this card. Prevent all effects of an attack, including damage, done by either player's Active Pokémon. If an Active Pokémon uses an attack, that attack ends, and discard this card.

Weekly price history

Week	Market price
2026-W31	€0.74
2026-W32	€0.77
2026-W33	€0.77
2026-W34	€0.80
2026-W35	€0.80
2026-W36	€0.82
2026-W37	€0.81
2026-W38	€0.81
2026-W39	€0.81

Printings & variants

Normal — $0.65

Questions

How much is Holon Circle 79/100 worth?

Holon Circle from Crystal Guardians (79/100) has a market estimate of €0.81, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Holon Circle 79/100 rare?

It is an Uncommon from Crystal Guardians, a 100-card set.

Is Holon Circle 79/100 tournament legal?

Holon Circle 79/100 has rotated out of the current formats.

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