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.

Rillaboom · Sword & Shield 14/202

Rillaboom (Sword & Shield 14/202), Holo Rare, Stage2, 170 HP. Market price €0.44, down 4.3% this week. Illustrated by Anesaki Dynamic. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

By drumming, it taps into the power of its special tree stump. The roots of the stump follow its direction in battle.

Card text

Ability: Voltage Beat — Once during your turn, you may search your deck for up to 2 Grass Energy cards and attach them to 1 of your Pokémon. Then, shuffle your deck.
Hammer In 140

Weekly price history

Week	Market price
2026-W31	€0.45
2026-W32	€0.44
2026-W33	€0.44
2026-W34	€0.44
2026-W35	€0.44
2026-W36	€0.42
2026-W37	€0.41
2026-W38	€0.46
2026-W39	€0.44

Printings & variants

Holo — $0.30
Reverse Holo — $0.44

Questions

How much is Rillaboom 14/202 worth?

Rillaboom from Sword & Shield (14/202) has a market estimate of €0.44, down 4.3% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Rillaboom 14/202 rare?

It is a Holo Rare from Sword & Shield, a 202-card set.

Is Rillaboom 14/202 tournament legal?

Rillaboom 14/202 is legal in Expanded.

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