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.

Cloyster · Generations 20/83

Cloyster (Generations 20/83), Uncommon, Stage1, 100 HP. Market price €0.24, down 17.2% this week. Illustrated by Masakazu Fukuda. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Cloyster that live in seas with harsh tidal currents grow large, sharp spikes on their shells.

Cloyster (National Pokédex #91) first appeared in Pokémon Red and Green (1996). Its earliest English cards in our catalogue are from 1999: Fossil.

More Cloyster printings

Card text

Clamp Crush 30 — Flip a coin. If heads, your opponent's Active Pokémon is now Paralyzed and discard an Energy attached to that Pokémon.
Spike Cannon 30× — Flip 5 coins. This attack does 30 damage times the number of heads.

Weekly price history

Over the last 11 weeks it has sold for between €0.24 and €0.33. That is down 7.7% from €0.26 10 weeks ago. Right now it is at its lowest tracked price.

Week	Market price
2026-W31	€0.26
2026-W32	€0.29
2026-W33	€0.29
2026-W34	€0.30
2026-W35	€0.30
2026-W36	€0.30
2026-W37	€0.31
2026-W38	€0.33
2026-W39	€0.28
2026-W40	€0.29
2026-W41	€0.24

Printings & variants

Normal — $0.33

Price by market

Across 2 markets it lists from €0.24 to €0.31.

CardTrader — €0.24
Cardmarket — €0.31

Price in context

Cloyster ranks #86 of the 115 priced cards in Generations. The median Uncommon in the set is €0.40. The 115 priced cards in Generations are worth €902.52 together; this card is less than 0.1% of that. The set’s value is up 8.8% this week. Over the last 11 weeks the set’s value went from €853.67 to €902.52 (+5.7%).

Top chases in Generations

M Charizard EX 12 — €143.91
Gengar 35 — €57.47
Flareon EX RC28 — €56.80
Flareon EX RC6 — €56.80
Sylveon EX RC21 — €53.32

Set value over 11 weeks · same 115 cards each week
Week	Set value
2026-W31	€853.67
2026-W32	€938.18
2026-W33	€938.75
2026-W34	€949.65
2026-W35	€949.67
2026-W36	€868.99
2026-W37	€884.96
2026-W38	€884.80
2026-W39	€894.89
2026-W40	€829.24
2026-W41	€902.52