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.

Energy Exchanger · Undaunted 73/90

Energy Exchanger (Undaunted 73/90), Uncommon. Market price €0.13, down 13.3% this week. Illustrated by Ryo Ueda. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Card text

Choose an Energy card from your hand, show it to your opponent, and put it on top of your deck. Search your deck for an Energy card, show it to your opponent, and put it into your hand. Shuffle your deck afterward.

Weekly price history

Week	Market price
2026-W31	€0.12
2026-W32	€0.12
2026-W33	€0.12
2026-W34	€0.14
2026-W35	€0.14
2026-W36	€0.13
2026-W37	€0.14
2026-W38	€0.15
2026-W39	€0.13

Printings & variants

Normal — $0.33
Reverse Holo — $0.49

Questions

How much is Energy Exchanger 73/90 worth?

Energy Exchanger from Undaunted (73/90) has a market estimate of €0.13, down 13.3% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Energy Exchanger 73/90 rare?

It is an Uncommon from Undaunted, a 90-card set.

Is Energy Exchanger 73/90 tournament legal?

Energy Exchanger 73/90 has rotated out of the current formats.

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