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.

Horsea · Dragon Majesty 15/70

Horsea (Dragon Majesty 15/70), Common, Basic, 40 HP. Market price €0.20, unchanged this week. Illustrated by Yukiko Baba. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

It makes its nest in the shade of corals. If it senses danger, it spits murky ink and flees.

Horsea (National Pokédex #116) first appeared in Pokémon Red and Green (1996). Its earliest English cards in our catalogue are from 1999: Fossil.

More Horsea printings

Card text

Splatter — This attack does 20 damage to 1 of your opponent’s Pokémon. (Don’t apply Weakness and Resistance for Benched Pokémon.)

Weekly price history

Week	Market price
2026-W31	€0.17
2026-W32	€0.20
2026-W33	€0.20
2026-W34	€0.20
2026-W35	€0.20
2026-W36	€0.20
2026-W37	€0.20
2026-W38	€0.20
2026-W39	€0.20
2026-W40	€0.20

Printings & variants

Normal — $0.27

Price in context

Horsea ranks #63 of the 75 priced cards in Dragon Majesty. The median Common in the set is €0.20. The 75 priced cards in Dragon Majesty are worth €640.01 together; this card is less than 0.1% of that. The set’s value is unchanged this week. Over the last 10 weeks the set’s value went from €598.84 to €640.01 (+6.9%).

Set value over 10 weeks · same 75 cards each week
Week	Set value
2026-W31	€598.84
2026-W32	€604.96
2026-W33	€607.97
2026-W34	€622.03
2026-W35	€622.47
2026-W36	€622.20
2026-W37	€630.79
2026-W38	€635.63
2026-W39	€640.01
2026-W40	€640.01