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.

Ectoplasmic Fortification! · Speed Duel: Arena of Lost Souls 300101001/50

Ectoplasmic Fortification! (Speed Duel: Arena of Lost Souls 300101001/50), Super Rare. Market price $0.56, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

[Flip this card over when you activate this Skill.] Once per turn, if you control a Zombie monster, you can place 1 counter on this card. All Zombie monsters you control gain 100 ATK and lose 100 DEF for each counter on this card. Any battle damage you take from battles involving your Zombie monster is doubled.

Weekly price history

Week	Market price
2026-W31	$0.47
2026-W32	$0.47
2026-W33	$0.46
2026-W34	$0.46
2026-W35	$0.46
2026-W36	$0.49
2026-W37	$0.51
2026-W38	$0.56
2026-W39	$0.56

Questions

How much is Ectoplasmic Fortification! 300101001/50 worth?

Ectoplasmic Fortification! from Speed Duel: Arena of Lost Souls (300101001/50) has a market estimate of $0.56, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Ectoplasmic Fortification! 300101001/50 rare?

It is a Super Rare from Speed Duel: Arena of Lost Souls, a 50-card set.

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