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.

Darkness Energy · Aquapolis 142/147

Darkness Energy (Aquapolis 142/147), Rare. Market price €2.69, unchanged this week. Illustrated by Milky Isobe. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Card text

If the Pokémon Darkness Energy is attached to damages the Defending Pokémon (after applying Weakness and Resistance), the attack does 10 more damage to the Defending Pokémon. At the end of every turn, put 1 damage counter on the Pokémon Darkness Energy is attached to, unless it's Darkness or has Dark in its name. Darkness Energy provides Darkness Energy. (Doesn't count as a basic Energy card.)

Weekly price history

Week	Market price
2026-W31	€2.75
2026-W32	€2.69
2026-W33	€2.69
2026-W34	€2.69
2026-W35	€2.69
2026-W36	€2.69
2026-W37	€2.69
2026-W38	€2.69
2026-W39	€2.69

Printings & variants

Normal — $10.18
Reverse Holo — $10.83

Questions

How much is Darkness Energy 142/147 worth?

Darkness Energy from Aquapolis (142/147) has a market estimate of €2.69, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Darkness Energy 142/147 rare?

It is a Rare from Aquapolis, a 147-card set.

Is Darkness Energy 142/147 tournament legal?

Darkness Energy 142/147 has rotated out of the current formats.

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