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.

Mountain · Eighth Edition 346★/711

Mountain (Eighth Edition 346★/711), Common, Basic Land — Mountain. Market price €0.60, up 1.5% this week. Illustrated by Rob Alexander. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

First printed in Limited Edition Alpha on 5 August 1993.

More Mountain printings

Mountain · The Hobbit — €0.14
Mountain · Teenage Mutant Ninja Turtles — €0.21
Mountain · The Hobbit — €0.30
Mountain · Teenage Mutant Ninja Turtles — €0.32
Mountain · Secrets of Strixhaven — €0.53
Mountain · Lorwyn Eclipsed — €0.19
Mountain · Lorwyn Eclipsed — €0.22
Mountain · Secrets of Strixhaven — €0.14
Mountain · Secrets of Strixhaven — €0.14
Mountain · Lorwyn Eclipsed — €0.29
Mountain · Marvel Super Heroes — €0.23
Mountain · Marvel Super Heroes — €0.21

Weekly price history

Over the last 11 weeks it has sold for between €0.59 and €5.97. That is down 83.2% from €3.56 10 weeks ago. Right now it is 90% below its tracked high.

Week	Market price
2026-W31	€3.56
2026-W32	€3.52
2026-W33	€3.51
2026-W34	€3.50
2026-W35	€3.48
2026-W36	€3.50
2026-W37	€5.90
2026-W38	€5.94
2026-W39	€5.97
2026-W40	€0.59
2026-W41	€0.60

Price in context

Mountain ranks #281 of the 701 priced cards in Eighth Edition. The median Common in the set is €0.29. The 701 priced cards in Eighth Edition are worth €2579.61 together; this card is less than 0.1% of that. The set’s value is up 2.1% this week. Over the last 11 weeks the set’s value went from €2399.49 to €2549.97 (+6.3%).

Top chases in Eighth Edition

Birds of Paradise 233★ — €284.72
Grave Pact 137★ — €175.22
City of Brass 322★ — €149.46
Intruder Alarm 86★ — €96.39
Curiosity 72★ — €61.29

Set value over 11 weeks · same 667 cards each week
Week	Set value
2026-W31	€2399.49
2026-W32	€2367.84
2026-W33	€2369.12
2026-W34	€2386.22
2026-W35	€2373.86
2026-W36	€2360.69
2026-W37	€2369.34
2026-W38	€2377.52
2026-W39	€2354.45
2026-W40	€2498.25
2026-W41	€2549.97