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.

D/D Savant Thomas · The Dark Illusion: Special Edition 41546/4

D/D Savant Thomas (The Dark Illusion: Special Edition 41546/4), Rare. Market price $0.22, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

[ Pendulum Effect ] During your Main Phase: You can add 1 face-up "D/D" Pendulum Monster from your Extra Deck to your hand. You can only use this effect of "D/D Savant Thomas" once per turn. [ Monster Effect ] You can target 1 "D/D" card in your Pendulum Zone; destroy that card, and if you do, Special Summon 1 Level 8 "D/D/D" monster from your Deck in Defense Position, but for the rest of this turn, its effects (if any) are negated, also any battle damage your opponent takes becomes halved. You can only use this effect of "D/D Savant Thomas" once per turn.

Weekly price history

Week	Market price
2026-W31	$0.21
2026-W32	$0.23
2026-W33	$0.23
2026-W34	$0.23
2026-W35	$0.23
2026-W36	$0.23
2026-W37	$0.22
2026-W38	$0.22
2026-W39	$0.22

Questions

How much is D/D Savant Thomas 41546/4 worth?

D/D Savant Thomas from The Dark Illusion: Special Edition (41546/4) has a market estimate of $0.22, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is D/D Savant Thomas 41546/4 rare?

It is a Rare from The Dark Illusion: Special Edition, a 4-card set.

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