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.

Arceus & Dialga & Palkia GX · Cosmic Eclipse 221/236

Arceus & Dialga & Palkia GX (Cosmic Eclipse 221/236), Ultra Rare, 280 HP. Market price €457.29, unchanged this week. Illustrated by Kouki Saitou. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Card text

Ultimate Ray 150 — Search your deck for up to 3 basic Energy cards and attach them to your Pokémon in any way you like. Then, shuffle your deck.
Altered Creation GX — For the rest of this game, your Pokémon’s attacks do 30 more damage to your opponent’s Active Pokémon (before applying Weakness and Resistance). If this Pokémon has at least 1 extra Water Energy attached to it (in addition to this attack’s cost), when your opponent’s Active Pokémon is Knocked Out by damage from those attacks, take 1 more Prize card. (You can’t use more than 1 GX attack in a game.)

Weekly price history

Week	Market price
2026-W31	€500.25
2026-W32	€491.36
2026-W33	€491.36
2026-W34	€457.51
2026-W35	€451.90
2026-W36	€451.90
2026-W37	€450.01
2026-W38	€457.29
2026-W39	€457.29

Questions

How much is Arceus & Dialga & Palkia GX 221/236 worth?

Arceus & Dialga & Palkia GX from Cosmic Eclipse (221/236) has a market estimate of €457.29, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Arceus & Dialga & Palkia GX 221/236 rare?

It is an Ultra Rare from Cosmic Eclipse, a 236-card set.

Is Arceus & Dialga & Palkia GX 221/236 tournament legal?

Arceus & Dialga & Palkia GX 221/236 is legal in Expanded.

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