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.

Mystical Celtic Sage · Yu-Gi-Oh (No Set) 50073633

Mystical Celtic Sage (Yu-Gi-Oh (No Set) 50073633). Market price $0.39, down 13.3% this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

If this card is Normal or Special Summoned: You can activate this effect; you can only Special Summon from the Extra Deck once for the rest of this turn, also reveal your entire hand, and if there is a card that mentions "Ritual of Light and Darkness" in it, you can draw 3 cards, then discard 2 cards. You can Tribute this card; Special Summon 1 Ritual Monster that mentions "Ritual of Light and Darkness" from your hand. You can only use each effect of "Mystical Celtic Sage" once per turn.

Weekly price history

Week	Market price
2026-W31	$0.31
2026-W32	$0.42
2026-W33	$0.43
2026-W34	$0.40
2026-W35	$0.40
2026-W36	$0.43
2026-W37	$0.39
2026-W38	$0.45
2026-W39	$0.39

Questions

How much is Mystical Celtic Sage 50073633 worth?

Mystical Celtic Sage from Yu-Gi-Oh (No Set) (50073633) has a market estimate of $0.39, down 13.3% this week. Prices are estimates from TCGPlayer and Cardmarket.

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