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.

The Black Stone of Legend · Clash of Rebellions: Special Edition 66574418/4

The Black Stone of Legend (Clash of Rebellions: Special Edition 66574418/4), Secret Rare. Market price $1.07, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

You can Tribute this card; Special Summon 1 Level 7 or lower "Red-Eyes" monster from your Deck, except "Red-Eyes B. Chick". If this card is in your Graveyard: You can target 1 Level 7 or lower "Red-Eyes" monster in your Graveyard, except "Red-Eyes B. Chick"; shuffle it into the Deck, and if you do, add this card to your hand. You can only use 1 "The Black Stone of Legend" effect per turn, and only once that turn.

Weekly price history

Week	Market price
2026-W31	$1.49
2026-W32	$1.43
2026-W33	$1.34
2026-W34	$1.30
2026-W35	$1.30
2026-W36	$1.20
2026-W37	$1.17
2026-W38	$1.07
2026-W39	$1.07

Questions

How much is The Black Stone of Legend 66574418/4 worth?

The Black Stone of Legend from Clash of Rebellions: Special Edition (66574418/4) has a market estimate of $1.07, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is The Black Stone of Legend 66574418/4 rare?

It is a Secret Rare from Clash of Rebellions: Special Edition, a 4-card set.

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