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.

Goddess of the Two Sides · The Lost Art Promotion O 50915474/1

Goddess of the Two Sides (The Lost Art Promotion O 50915474/1), Ultra Rare. Market price $0.15, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

If this card is Normal or Special Summoned: You can add 1 monster from your Deck to your hand that has a coin tossing effect, except "Goddess of the Two Sides". During your Main Phase: You can toss a coin and call it. If you call it right, double the ATK of all monsters you currently control until the end of this turn. If you call it wrong, send as many monsters you control to the GY as possible (min. 1), and if you do, draw 1 card. You can only use each effect of "Goddess of the Two Sides" once per turn.

Weekly price history

Week	Market price
2026-W31	$0.15
2026-W32	$0.17
2026-W33	$0.15
2026-W34	$0.17
2026-W35	$0.17
2026-W36	$0.16
2026-W37	$0.16
2026-W38	$0.15
2026-W39	$0.15

Questions

How much is Goddess of the Two Sides 50915474/1 worth?

Goddess of the Two Sides from The Lost Art Promotion O (50915474/1) has a market estimate of $0.15, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Goddess of the Two Sides 50915474/1 rare?

It is an Ultra Rare from The Lost Art Promotion O, a 1-card set.

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