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 · Emerald 86/106

Darkness Energy (Emerald 86/106), Rare. Market price €1.07, up 4.9% 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 attacks, the attack does 10 more damage to the Active Pokémon (before applying Weakness and Resistance). Ignore this effect unless the Attacking Pokémon is Darkness or has Dark in its name. Darkness Energy provides Darkness Energy. (Doesn't count as a Basic card.)

Weekly price history

Week	Market price
2026-W31	€1.03
2026-W32	€1.03
2026-W33	€1.03
2026-W34	€1.09
2026-W35	€1.09
2026-W36	€1.10
2026-W37	€1.10
2026-W38	€1.02
2026-W39	€1.07

Printings & variants

Normal — $1.75
Reverse Holo — $34.99

Questions

How much is Darkness Energy 86/106 worth?

Darkness Energy from Emerald (86/106) has a market estimate of €1.07, up 4.9% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Darkness Energy 86/106 rare?

It is a Rare from Emerald, a 106-card set.

Is Darkness Energy 86/106 tournament legal?

Darkness Energy 86/106 has rotated out of the current formats.

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