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.

Horus the Black Flame Deity · Phantom Nightmare 99307040/101

Horus the Black Flame Deity (Phantom Nightmare 99307040/101), Quarter Century Secret Rare. Market price $0.26, down 16.1% this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

If you control a "Horus" monster and "King's Sarcophagus": You can reveal this card in your hand, then send 1 card from your hand or field to the GY; send 1 card on the field to the GY. If a face-up "Horus" monster(s) you control, except "Horus the Black Flame Deity", or a face-up "King's Sarcophagus" you control, leaves the field by an opponent's card effect (except during the Damage Step): You can Special Summon this card from your hand, then you can send all other monsters on the field to the GY. You can only use each effect of "Horus the Black Flame Deity" once per turn.

Weekly price history

Week	Market price
2026-W31	$0.29
2026-W32	$0.27
2026-W33	$0.29
2026-W34	$0.31
2026-W35	$0.31
2026-W36	$0.31
2026-W37	$0.26

Questions

How much is Horus the Black Flame Deity 99307040/101 worth?

Horus the Black Flame Deity from Phantom Nightmare (99307040/101) has a market estimate of $0.26, down 16.1% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Horus the Black Flame Deity 99307040/101 rare?

It is a Quarter Century Secret Rare from Phantom Nightmare, a 101-card set.

Browse more Yu-Gi-Oh cards · All Phantom Nightmare cards · Build a deck · Track your collection