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.

Gagaga Sister · World Superstars 387282/50

Gagaga Sister (World Superstars 387282/50), Prismatic Secret Rare. Market price $1.00, down 2.9% this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

When this card is Normal Summoned: You can add 1 "Gagaga" Spell/Trap Card from your Deck to your hand. You can target 1 other "Gagaga" monster you control; the Levels of that monster and this card become their combined current Levels, until the end of this turn. You can only use this effect of "Gagaga Sister" once per turn.

Weekly price history

Week	Market price
2026-W31	$0.95
2026-W32	$0.98
2026-W33	$0.99
2026-W34	$1.01
2026-W35	$1.01
2026-W36	$1.01
2026-W37	$1.00
2026-W38	$1.03
2026-W39	$1.00

Questions

How much is Gagaga Sister 387282/50 worth?

Gagaga Sister from World Superstars (387282/50) has a market estimate of $1.00, down 2.9% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Gagaga Sister 387282/50 rare?

It is a Prismatic Secret Rare from World Superstars, a 50-card set.

Browse more Yu-Gi-Oh cards · All World Superstars cards · Build a deck · Track your collection