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.

Mewtwo Star · Holon Phantoms 103/110

Mewtwo Star (Holon Phantoms 103/110), Rare, Basic, 80 HP. Market price €86.18, up 27.1% this week. Illustrated by Masakazu Fukuda. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Card text

Energy Absorption — Search your discard pile for an Energy card and attach it to Mewtwo Star.
Psychic Star 50+ — If the Defending Pokémon is an Evolved Pokémon, discard all Energy attached to Mewtwo Star and this attack does 50 damage plus 50 more damage.

Weekly price history

Week	Market price
2026-W31	€74.48
2026-W32	€69.84
2026-W33	€69.84
2026-W34	€70.56
2026-W35	€70.56
2026-W36	€66.37
2026-W37	€75.84
2026-W38	€67.80
2026-W39	€86.18

Questions

How much is Mewtwo Star 103/110 worth?

Mewtwo Star from Holon Phantoms (103/110) has a market estimate of €86.18, up 27.1% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Mewtwo Star 103/110 rare?

It is a Rare from Holon Phantoms, a 110-card set.

Is Mewtwo Star 103/110 tournament legal?

Mewtwo Star 103/110 has rotated out of the current formats.

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