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.

Magister of Endymion · Structure Deck: Order of the Spellcasters 66104644/41

Magister of Endymion (Structure Deck: Order of the Spellcasters 66104644/41), Common. Market price $1.06, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

[ Pendulum Effect ] Each time a Spell Card is activated, place 1 Spell Counter on this card when that Spell resolves. You can remove 3 Spell Counters from this card; Special Summon both this card from your Pendulum Zone and 1 face-up monster from your Extra Deck that you can place a Spell Counter on, and if you do, place 1 Spell Counter on each. [ Monster Effect ] You can only Special Summon "Magister(s) of Endymion" once per turn. When this card declares an attack: You can place 1 Spell Counter on it. Once per opponent's turn (Quick Effect): You can remove 3 Spell Counters from your field; Special Summon 1 monster from your Deck that you can place a Spell Counter on. If this card in the Monster Zone is destroyed: You can place this card in your Pendulum Zone, then place the same number of Spell Counters on it that it had as a monster.

Weekly price history

Week	Market price
2026-W31	$1.04
2026-W32	$1.07
2026-W33	$1.08
2026-W34	$1.09
2026-W35	$1.09
2026-W36	$1.07
2026-W37	$1.06
2026-W38	$1.06
2026-W39	$1.06

Questions

How much is Magister of Endymion 66104644/41 worth?

Magister of Endymion from Structure Deck: Order of the Spellcasters (66104644/41) has a market estimate of $1.06, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Magister of Endymion 66104644/41 rare?

It is a Common from Structure Deck: Order of the Spellcasters, a 41-card set.

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