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.

Harpie Harpist · Crossed Souls: Advance Edition 56585883/4

Harpie Harpist (Crossed Souls: Advance Edition 56585883/4), Super Rare. Market price $0.75, down 1.3% this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

This card's name becomes "Harpie Lady" while it is on the field or in the Graveyard. You can only use each of these effects of "Harpie Harpist" once per turn. ● When this card is Normal Summoned: You can target 1 Winged Beast-Type monster you control (other than this card) and 1 face-up monster your opponent controls; return them to the hand. ● During the End Phase, if this card is in the Graveyard because it was sent there this turn: You can add 1 Level 4 Winged Beast-Type monster with 1500 or less ATK from your Deck to your hand.

Weekly price history

Week	Market price
2026-W31	$0.78
2026-W32	$0.77
2026-W33	$0.79
2026-W34	$0.79
2026-W35	$0.79
2026-W36	$0.68
2026-W37	$0.58
2026-W38	$0.76
2026-W39	$0.75

Questions

How much is Harpie Harpist 56585883/4 worth?

Harpie Harpist from Crossed Souls: Advance Edition (56585883/4) has a market estimate of $0.75, down 1.3% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Harpie Harpist 56585883/4 rare?

It is a Super Rare from Crossed Souls: Advance Edition, a 4-card set.

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