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.

Magikey Duo · Dawn of Majesty Premiere! promotional card 51510279/1

Magikey Duo (Dawn of Majesty Premiere! promotional card 51510279/1), Common. Market price $0.06, down 14.3% this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

You can target 1 Normal Monster or 1 "Magikey" monster in your GY; add it to your hand, then you can apply 1 of these effects. ● Fusion Summon 1 "Magikey" Fusion Monster from your Extra Deck in Defense Position, using monsters from your hand or field as Fusion Material. ● Ritual Summon 1 "Magikey" Ritual Monster from your hand in Defense Position, by Tributing monsters from your hand or field whose total Levels equal or exceed its Level.

Weekly price history

Week	Market price
2026-W31	$0.06
2026-W32	$0.06
2026-W33	$0.05
2026-W34	$0.06
2026-W35	$0.06
2026-W36	$0.05
2026-W37	$0.07
2026-W38	$0.07
2026-W39	$0.06

Questions

How much is Magikey Duo 51510279/1 worth?

Magikey Duo from Dawn of Majesty Premiere! promotional card (51510279/1) has a market estimate of $0.06, down 14.3% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Magikey Duo 51510279/1 rare?

It is a Common from Dawn of Majesty Premiere! promotional card, a 1-card set.

Browse more Yu-Gi-Oh cards · All Dawn of Majesty Premiere! promotional card cards · Build a deck · Track your collection