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.

Lairon · Ruby & Sapphire 37/109

Lairon (Ruby & Sapphire 37/109), Uncommon, Stage1, 80 HP. Market price €1.28, up 1.6% this week. Illustrated by Mitsuhiro Arita. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Card text

Magnitude 20 — Does 10 damage to each Benched Pokémon (both yours and your opponent's). (Don't apply Weakness and Resistance for Benched Pokémon.)
One-Two Strike 30+ — Flip 2 coins. This attack does 30 damage plus 20 more damage for each heads.

Weekly price history

Week	Market price
2026-W31	€1.22
2026-W32	€1.24
2026-W33	€1.24
2026-W34	€1.30
2026-W35	€1.32
2026-W36	€1.27
2026-W37	€1.32
2026-W38	€1.26
2026-W39	€1.28

Printings & variants

Normal — $2.51
Reverse Holo — $6.77

Questions

How much is Lairon 37/109 worth?

Lairon from Ruby & Sapphire (37/109) has a market estimate of €1.28, up 1.6% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Lairon 37/109 rare?

It is an Uncommon from Ruby & Sapphire, a 109-card set.

Is Lairon 37/109 tournament legal?

Lairon 37/109 has rotated out of the current formats.

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