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.

Cascoon · Diamond & Pearl 44/130

Cascoon (Diamond & Pearl 44/130), Uncommon, Stage1, 80 HP. Market price €0.26, unchanged this week. Illustrated by Ken Sugimori. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

It is hot inside its cocoon. All the cells in its body create the energy for it to evolve.

Cascoon (National Pokédex #268) first appeared in Pokémon Ruby and Sapphire (2002). Its earliest English cards in our catalogue are from 2003: Ruby & Sapphire.

More Cascoon printings

Card text

Harden — During your opponent's next turn, if Cascoon would be damaged by an attack, prevent that attack's damage done to Cascoon if that damage is 30 or less.
Gooey Thread 20 — The Defending Pokémon can't retreat during your opponent's next turn.

Weekly price history

Week	Market price
2026-W31	€0.28
2026-W32	€0.24
2026-W33	€0.24
2026-W34	€0.27
2026-W35	€0.27
2026-W36	€0.28
2026-W37	€0.28
2026-W38	€0.27
2026-W39	€0.26
2026-W40	€0.26

Printings & variants

Normal — $0.53
Reverse Holo — $2.72

Price in context

Cascoon ranks #84 of the 126 priced cards in Diamond & Pearl. The median Uncommon in the set is €0.29. The 126 priced cards in Diamond & Pearl are worth €255.51 together; this card is 0.1% of that. The set’s value is unchanged this week. Over the last 10 weeks the set’s value went from €237.10 to €255.51 (+7.8%).

Top chases in Diamond & Pearl

Empoleon 120 — €34.59
Infernape 121 — €30.18
Torterra 122 — €26.12
Gengar 27 — €18.07
Lucario 6 — €11.69

Set value over 10 weeks · same 126 cards each week
Week	Set value
2026-W31	€237.10
2026-W32	€251.91
2026-W33	€251.82
2026-W34	€245.40
2026-W35	€244.42
2026-W36	€251.18
2026-W37	€251.75
2026-W38	€249.95
2026-W39	€255.51
2026-W40	€255.51