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.

Hydrojet Shark · Supreme Darkness 90315086/101

Hydrojet Shark (Supreme Darkness 90315086/101), Common. Market price $0.18, down 5.3% this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

If a WATER Xyz Monster is on the field, you can Special Summon this card (from your hand), but you cannot Special Summon "Hydrojet Shark" for the rest of this turn. You can only use 1 of the following effects of "Hydrojet Shark" per turn, and only once that turn. During your Main Phase: You can send 1 Fish "Shark" monster or 1 "Xyz" Spell/Trap from your Deck to the GY. You can banish this card from your GY; add 1 "Aqua Jet" card from your Deck or GY to your hand.

Weekly price history

Week	Market price
2026-W31	$0.18
2026-W32	$0.20
2026-W33	$0.16
2026-W34	$0.17
2026-W35	$0.17
2026-W36	$0.19
2026-W37	$0.18

Questions

How much is Hydrojet Shark 90315086/101 worth?

Hydrojet Shark from Supreme Darkness (90315086/101) has a market estimate of $0.18, down 5.3% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Hydrojet Shark 90315086/101 rare?

It is a Common from Supreme Darkness, a 101-card set.

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