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.

Mamaragan (Alternate Art) · Adventure on Kami's Island OP15-078/151

Mamaragan (Alternate Art) (Adventure on Kami's Island OP15-078/151), SR. Market price $47.74, down 0.6% this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

[Main] DON!! 2: Draw 1 card. Then, rest up to 1 of your opponent's Characters with 5000 power or less. [Counter] Up to 1 of your Leader or Character cards gains +1000 power during this battle. Then, if you have 6 or less DON!! cards on your field, draw 1 card.

Weekly price history

Week	Market price
2026-W30	$57.37
2026-W31	$60.69
2026-W32	$56.13
2026-W33	$44.92
2026-W34	$47.99
2026-W35	$48.88
2026-W36	$47.11
2026-W37	$46.85

Printings & variants

Mamaragan OP15-078 — $25.05

Questions

How much is Mamaragan (Alternate Art) OP15-078/151 worth?

Mamaragan (Alternate Art) from Adventure on Kami's Island (OP15-078/151) has a market estimate of $47.74, down 0.6% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Mamaragan (Alternate Art) OP15-078/151 rare?

It is a SR from Adventure on Kami's Island, a 151-card set.

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