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.

Magical King of the Swamp · Yu-Gi-Oh (No Set) 45223540

Magical King of the Swamp (Yu-Gi-Oh (No Set) 45223540). Market price $0.10, up 42.9% this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

If this card is in your hand: You can reveal 1 Fusion Monster in your Extra Deck and banish 1 material whose name is mentioned on it from your Deck, then Special Summon this card, and its name can be treated as the banished monster's if used as Fusion Material this turn. You can only use this effect of "Magical King of the Swamp" once per turn.

Weekly price history

Week	Market price
2026-W31	$0.15
2026-W32	$0.12
2026-W33	$0.19
2026-W34	$0.15
2026-W35	$0.15
2026-W36	$0.14
2026-W37	$0.14
2026-W38	$0.07
2026-W39	$0.10

Questions

How much is Magical King of the Swamp 45223540 worth?

Magical King of the Swamp from Yu-Gi-Oh (No Set) (45223540) has a market estimate of $0.10, up 42.9% this week. Prices are estimates from TCGPlayer and Cardmarket.

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