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.

Rainbow Energy · HeartGold SoulSilver 104/123

Rainbow Energy (HeartGold SoulSilver 104/123), Uncommon. Market price €0.88, down 1.1% this week. Illustrated by Kent Kanetsuna. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Card text

Attach Rainbow Energy to 1 of your Pokémon. While in play, Rainbow Energy provides every type of Energy but provides only 1 Energy at a time. (Has no effect other than providing Energy.) When you attach this card from your hand to 1 of your Pokémon, put 1 damage counter on that Pokémon. (While not in play, Rainbow Energy counts as Colorless Energy.)

Weekly price history

Week	Market price
2026-W31	€1.00
2026-W32	€0.98
2026-W33	€0.95
2026-W34	€0.93
2026-W35	€0.93
2026-W36	€0.94
2026-W37	€0.92
2026-W38	€0.89
2026-W39	€0.88

Printings & variants

Normal — $1.96
Reverse Holo — $9.62

Questions

How much is Rainbow Energy 104/123 worth?

Rainbow Energy from HeartGold SoulSilver (104/123) has a market estimate of €0.88, down 1.1% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Rainbow Energy 104/123 rare?

It is an Uncommon from HeartGold SoulSilver, a 123-card set.

Is Rainbow Energy 104/123 tournament legal?

Rainbow Energy 104/123 has rotated out of the current formats.

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