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.

The Phantom Knights of Malevolent Scythe · Yu-Gi-Oh (No Set) 78449284

The Phantom Knights of Malevolent Scythe (Yu-Gi-Oh (No Set) 78449284). Market price $0.21, down 27.6% this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

2 Level 3 DARK monsters You can detach 1 material from this card; Special Summon 1 "The Phantom Knights" monster from your Deck. If you Xyz Summon an "Xyz Dragon" monster while this card is in the Monster Zone (except during the Damage Step): You can add 1 "Rank-Up-Magic" Spell from your Deck to your hand. If this card is destroyed: You can add 1 of your banished "The Phantom Knights" cards to your hand, except an Xyz Monster. You can only use each effect of "The Phantom Knights of Malevolent Scythe" once per turn.

Weekly price history

Week	Market price
2026-W31	$0.27
2026-W32	$0.27
2026-W33	$0.22
2026-W34	$0.22
2026-W35	$0.22
2026-W36	$0.26
2026-W37	$0.23
2026-W38	$0.29
2026-W39	$0.21

Questions

How much is The Phantom Knights of Malevolent Scythe 78449284 worth?

The Phantom Knights of Malevolent Scythe from Yu-Gi-Oh (No Set) (78449284) has a market estimate of $0.21, down 27.6% this week. Prices are estimates from TCGPlayer and Cardmarket.

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