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.

Spikeshield with Chain · Cosmo Blazer: Special Edition 6691855/2

Spikeshield with Chain (Cosmo Blazer: Special Edition 6691855/2), Common. Market price $0.08, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Target 1 face-up monster on the field; equip this card to that target. It gains 500 ATK. If the equipped monster attacks or is attacked while in Defense Position, it gains DEF equal to its ATK during damage calculation only.

Weekly price history

Week	Market price
2026-W31	$0.09
2026-W32	$0.09
2026-W33	$0.09
2026-W34	$0.09
2026-W35	$0.09
2026-W36	$0.09
2026-W37	$0.09
2026-W38	$0.08
2026-W39	$0.08

Questions

How much is Spikeshield with Chain 6691855/2 worth?

Spikeshield with Chain from Cosmo Blazer: Special Edition (6691855/2) has a market estimate of $0.08, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Spikeshield with Chain 6691855/2 rare?

It is a Common from Cosmo Blazer: Special Edition, a 2-card set.

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