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.

Mysterious Shard · Crystal Guardians 81/100

Mysterious Shard (Crystal Guardians 81/100), Uncommon. Market price €0.95, unchanged this week. Illustrated by Takumi Akabane. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Card text

Attach Mysterious Shard to 1 of your Pokémon (excluding Pokémon-ex) that doesn't already have a Pokémon Tool attached to it. If the Pokémon Mysterious Shard is attached to is a Pokémon-ex, discard this card. Prevent all effects of attacks, including damage, done to the Pokémon that Mysterious Shard is attached to by your opponent's Pokémon-ex. Discard this card at the end of your opponent's next turn.

Weekly price history

Week	Market price
2026-W31	€1.05
2026-W32	€1.03
2026-W33	€1.03
2026-W34	€1.00
2026-W35	€1.00
2026-W36	€1.00
2026-W37	€0.95
2026-W38	€0.95
2026-W39	€0.95

Printings & variants

Normal — $0.48

Questions

How much is Mysterious Shard 81/100 worth?

Mysterious Shard from Crystal Guardians (81/100) has a market estimate of €0.95, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Mysterious Shard 81/100 rare?

It is an Uncommon from Crystal Guardians, a 100-card set.

Is Mysterious Shard 81/100 tournament legal?

Mysterious Shard 81/100 has rotated out of the current formats.

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