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.

Gem-Knight Aquamarine · Duel Terminal 5b 13108445/50

Gem-Knight Aquamarine (Duel Terminal 5b 13108445/50), Duel Terminal Super Parallel Rare. Market price $0.19, up 11.8% this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

"Gem-Knight Sapphire" + 1 "Gem-Knight" monster Must first be Fusion Summoned with the above Fusion Material Monsters. If this card attacks, it is changed to Defense Position at the end of the Battle Phase. When this card is sent from the field to the Graveyard: Target 1 card your opponent controls; return that target to the hand.

Weekly price history

Week	Market price
2026-W31	$0.23
2026-W32	$0.25
2026-W33	$0.26
2026-W34	$0.26
2026-W35	$0.26
2026-W36	$0.25
2026-W37	$0.23
2026-W38	$0.17
2026-W39	$0.19

Questions

How much is Gem-Knight Aquamarine 13108445/50 worth?

Gem-Knight Aquamarine from Duel Terminal 5b (13108445/50) has a market estimate of $0.19, up 11.8% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Gem-Knight Aquamarine 13108445/50 rare?

It is a Duel Terminal Super Parallel Rare from Duel Terminal 5b, a 50-card set.

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