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.

Number C104: Umbral Horror Masquerade · Judgment of the Light: Deluxe Edition 49456901/4

Number C104: Umbral Horror Masquerade (Judgment of the Light: Deluxe Edition 49456901/4), Super Rare. Market price $0.12, up 9.1% this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

4 Level 5 monsters When this card is Special Summoned: You can target 1 Spell/Trap Card on the field; destroy that target. If this card has "Number 104: Masquerade" as an Xyz material, it gains this effect. ● Once per turn, during either player's turn, when a monster effect is activated on your opponent's side of the field: You can detach 1 Xyz Material from this card; negate the activation, then you can send 1 random card from your opponent's hand to the Graveyard, and if you do, halve your opponent's Life Points.

Weekly price history

Week	Market price
2026-W31	$0.12
2026-W32	$0.13
2026-W33	$0.13
2026-W34	$0.11
2026-W35	$0.11
2026-W36	$0.13
2026-W37	$0.11
2026-W38	$0.11
2026-W39	$0.12

Questions

How much is Number C104: Umbral Horror Masquerade 49456901/4 worth?

Number C104: Umbral Horror Masquerade from Judgment of the Light: Deluxe Edition (49456901/4) has a market estimate of $0.12, up 9.1% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Number C104: Umbral Horror Masquerade 49456901/4 rare?

It is a Super Rare from Judgment of the Light: Deluxe Edition, a 4-card set.

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