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.

Witness of the Ancient · Chaos Origins 54577949/100

Witness of the Ancient (Chaos Origins 54577949/100), Starlight Rare. Market price $1.81, down 7.2% this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

If you have a Synchro Monster in your field or GY: You can Special Summon this card from your hand. If this card is Special Summoned: You can place up to 3 Synchro Monsters with different names from your Extra Deck and/or GY in your Spell & Trap Zone as face-up Continuous Spells, and Special Summon 1 "Arc Token" (Machine/LIGHT/ATK 0/DEF 0) with a Level equal to the number placed, also for the rest of this turn, you cannot Special Summon from the Extra Deck, except Synchro Monsters. You can only use each effect of "Witness of the Ancient" once per turn.

Weekly price history

Week	Market price
2026-W31	$1.79
2026-W32	$1.56
2026-W33	$1.60
2026-W34	$1.30
2026-W35	$1.30
2026-W36	$1.95
2026-W37	$1.81

Questions

How much is Witness of the Ancient 54577949/100 worth?

Witness of the Ancient from Chaos Origins (54577949/100) has a market estimate of $1.81, down 7.2% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Witness of the Ancient 54577949/100 rare?

It is a Starlight Rare from Chaos Origins, a 100-card set.

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