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.

Ancient Gear Gadget · Machine Reactor Structure Deck 18486927/40

Ancient Gear Gadget (Machine Reactor Structure Deck 18486927/40), Ultra Rare. Market price $0.17, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

If this card is Normal or Special Summoned: You can declare 1 card type (Monster, Spell, or Trap); this turn, if a monster you control attacks, your opponent's Spell Cards, Trap Cards, or monster effects (whichever was declared) cannot be activated until the end of the Damage Step. Once per turn: You can declare 1 "Gadget" monster's card name; until the End Phase, this card's name becomes that name.

Weekly price history

Week	Market price
2026-W31	$0.18
2026-W32	$0.18
2026-W33	$0.19
2026-W34	$0.19
2026-W35	$0.19
2026-W36	$0.19
2026-W37	$0.18
2026-W38	$0.17
2026-W39	$0.17

Questions

How much is Ancient Gear Gadget 18486927/40 worth?

Ancient Gear Gadget from Machine Reactor Structure Deck (18486927/40) has a market estimate of $0.17, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Ancient Gear Gadget 18486927/40 rare?

It is an Ultra Rare from Machine Reactor Structure Deck, a 40-card set.

Browse more Yu-Gi-Oh cards · All Machine Reactor Structure Deck cards · Build a deck · Track your collection