Can I build a deck together with friends on TCGSwap?

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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?

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Is collaborative deck building free?

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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.

Butterfree · Southern Islands 9/18

Butterfree (Southern Islands 9/18), Common, Stage2, 80 HP. Market price €32.38, unchanged this week. Illustrated by Keiko Fukuyama. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

The poison scales on its wings are waterproof, allowing this Pokémon to be active even on rainy days.

Butterfree (National Pokédex #12) first appeared in Pokémon Red and Green (1996). Its earliest English cards in our catalogue are from 1999: Jungle.

More Butterfree printings

Card text

Fly 30 — Flip a coin. If heads, during your opponent's next turn, prevent all effects of attacks, including damage, done to Butterfree. If tails, this attack does nothing (not even damage).
Rainbow Powder 20 — Flip a coin. If heads, the Defending Pokémon is now Paralyzed. If tails, the Defending Pokémon is now Poisoned.

Weekly price history

Week	Market price
2026-W31	€24.60
2026-W32	€24.60
2026-W33	€24.60
2026-W34	€28.24
2026-W35	€28.24
2026-W36	€28.24
2026-W37	€29.24
2026-W38	€29.24
2026-W39	€32.38
2026-W40	€32.38

Printings & variants

Normal — $49.04

Price in context

Butterfree ranks #14 of the 18 priced cards in Southern Islands. The median Common in the set is €43.05. The 18 priced cards in Southern Islands are worth €1453.94 together; this card is 2.23% of that. The set’s value is unchanged this week. Over the last 10 weeks the set’s value went from €1204.11 to €1453.94 (+20.7%).

Top chases in Southern Islands

Mew 1 — €496.64
Slowking 14 — €180.39
Togepi 4 — €104.23
Marill 11 — €91.17
Wartortle 15 — €74.75

Set value over 10 weeks · same 18 cards each week
Week	Set value
2026-W31	€1204.11
2026-W32	€1218.07
2026-W33	€1219.48
2026-W34	€1282.79
2026-W35	€1282.94
2026-W36	€1415.67
2026-W37	€1428.14
2026-W38	€1444.11
2026-W39	€1453.94
2026-W40	€1453.94