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.

Assault Sentinel · Dark Neostorm Special Edition 39015/4

Assault Sentinel (Dark Neostorm Special Edition 39015/4), Common. Market price $0.49, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

You can Tribute this card; Special Summon 1 monster from your hand or Deck that specifically lists "Assault Mode Activate" in its text, except "Assault Sentinel", also you cannot Special Summon monsters from the Extra Deck for the rest of this turn, except Synchro Monsters. You can target 1 face-up monster you control; reveal 1 Synchro Monster in your Extra Deck, and if you do, the targeted monster's Type and Attribute become the same as the revealed monster's, until the end of this turn. You can only use each effect of "Assault Sentinel" once per turn.

Weekly price history

Week	Market price
2026-W31	$0.53
2026-W32	$0.53
2026-W33	$0.49
2026-W34	$0.49
2026-W35	$0.49
2026-W36	$0.49
2026-W37	$0.49
2026-W38	$0.49
2026-W39	$0.49

Questions

How much is Assault Sentinel 39015/4 worth?

Assault Sentinel from Dark Neostorm Special Edition (39015/4) has a market estimate of $0.49, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Assault Sentinel 39015/4 rare?

It is a Common from Dark Neostorm Special Edition, a 4-card set.

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