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.

Marill · HeartGold SoulSilver 74/123

Marill (HeartGold SoulSilver 74/123), Common, Basic, 60 HP. Market price €0.59, down 32.2% this week. Illustrated by Kouki Saitou. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

The end of its tail serves as a buoy that keeps it from drowning, even in a vicious current.

Card text

Water Splash 10+ — Flip a coin. If heads, this attack does 10 damage plus 10 more damage.
Tail Slap 30

Weekly price history

Week	Market price
2026-W31	€0.67
2026-W32	€0.89
2026-W33	€0.89
2026-W34	€1.01
2026-W35	€1.01
2026-W36	€0.96
2026-W37	€0.90
2026-W38	€0.87
2026-W39	€0.59

Printings & variants

Normal — $0.75
Reverse Holo — $8.50

Questions

How much is Marill 74/123 worth?

Marill from HeartGold SoulSilver (74/123) has a market estimate of €0.59, down 32.2% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Marill 74/123 rare?

It is a Common from HeartGold SoulSilver, a 123-card set.

Is Marill 74/123 tournament legal?

Marill 74/123 has rotated out of the current formats.

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