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.

Granmarg the Mega Monarch · Shadow Specters: Special Edition 15545291/2

Granmarg the Mega Monarch (Shadow Specters: Special Edition 15545291/2), Secret Rare. Market price $1.74, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

You can Tribute Summon this card by Tributing 1 Tribute Summoned monster. When this card is Tribute Summoned: Target up to 2 Set cards on the field; destroy those targets. If this card was Tribute Summoned by Tributing an EARTH monster, add this additional effect. ● Also, draw 1 card after that.

Weekly price history

Week	Market price
2026-W31	$1.47
2026-W32	$1.47
2026-W33	$1.50
2026-W34	$1.66
2026-W35	$1.66
2026-W36	$1.66
2026-W37	$1.66
2026-W38	$1.74
2026-W39	$1.74

Questions

How much is Granmarg the Mega Monarch 15545291/2 worth?

Granmarg the Mega Monarch from Shadow Specters: Special Edition (15545291/2) has a market estimate of $1.74, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Granmarg the Mega Monarch 15545291/2 rare?

It is a Secret Rare from Shadow Specters: Special Edition, a 2-card set.

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