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.

Meganium · Expedition Base Set 18/165

Meganium (Expedition Base Set 18/165), Holo Rare, Stage2, 100 HP. Market price €80.52, unchanged this week. Illustrated by Hajime Kusajima. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Card text

Poke-POWER: Soothing Aroma — Once during your turn (before your attack), you may flip a coin. If heads, remove 1 damage counter from each of your Pokémon that has any. This power can't be used if Meganium is affected by a Special Condition.
Poisonpowder 40 — The Defending Pokémon is now Poisoned.

Weekly price history

Week	Market price
2026-W31	€52.66
2026-W32	€52.62
2026-W33	€52.62
2026-W34	€52.62
2026-W35	€52.62
2026-W36	€63.93
2026-W37	€64.11
2026-W38	€80.52
2026-W39	€80.52

Printings & variants

Holo — $180.01
Reverse Holo — $79.95

Questions

How much is Meganium 18/165 worth?

Meganium from Expedition Base Set (18/165) has a market estimate of €80.52, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Meganium 18/165 rare?

It is a Holo Rare from Expedition Base Set, a 165-card set.

Is Meganium 18/165 tournament legal?

Meganium 18/165 has rotated out of the current formats.

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