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.

Eustass"Captain"Kid (099) (Parallel) · Royal Blood OP10-099/174

Eustass"Captain"Kid (099) (Parallel) (Royal Blood OP10-099/174), L. Market price $29.49, down 1.0% this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

[End of Your Turn] You may turn 1 card from the top of your Life cards face-up: Set up to 1 of your "Supernovas" type Characters with a cost of 3 to 8 as active. That Character gains [Blocker] until the end of your opponent's next turn.

Weekly price history

Week	Market price
2026-W30	$39.17
2026-W31	$39.54
2026-W32	$38.74
2026-W33	$37.68
2026-W34	$37.35
2026-W35	$37.27
2026-W36	$35.68
2026-W37	$34.80
2026-W38	$32.33
2026-W39	$32.02

Printings & variants

Eustass"Captain"Kid OP10-099 — $0.64
Eustass"Captain"Kid OP10-099 — $0.14

Questions

How much is Eustass"Captain"Kid (099) (Parallel) OP10-099/174 worth?

Eustass"Captain"Kid (099) (Parallel) from Royal Blood (OP10-099/174) has a market estimate of $29.49, down 1.0% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Eustass"Captain"Kid (099) (Parallel) OP10-099/174 rare?

It is a L from Royal Blood, a 174-card set.

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