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.

Seel · FireRed & LeafGreen 78/112

Seel (FireRed & LeafGreen 78/112), Common, Basic, 50 HP. Market price €17.00, up 3763.6% this week. Illustrated by Toshinao Aoki. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Card text

Horn Hazard 30 — Flip a coin. If tails, this attack does nothing.

Weekly price history

Week	Market price
2026-W31	€0.40
2026-W32	€0.30
2026-W33	€0.30
2026-W34	€0.36
2026-W35	€0.36
2026-W36	€0.35
2026-W37	€0.38
2026-W38	€0.44
2026-W39	€17.00

Printings & variants

Normal — $0.50
Reverse Holo — $21.20

Questions

How much is Seel 78/112 worth?

Seel from FireRed & LeafGreen (78/112) has a market estimate of €17.00, up 3763.6% this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Seel 78/112 rare?

It is a Common from FireRed & LeafGreen, a 112-card set.

Is Seel 78/112 tournament legal?

Seel 78/112 has rotated out of the current formats.

Browse more Pokémon cards · All FireRed & LeafGreen cards · Build a deck · Track your collection