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.

Number C79: Battlin' Boxer General Kaiser · Legendary Duelists: Soulburning Volcano 10300821/62

Number C79: Battlin' Boxer General Kaiser (Legendary Duelists: Soulburning Volcano 10300821/62), Super Rare. Market price $0.51, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

3 Level 5 monsters Gains 200 ATK for each material attached to it. Once per turn, when your opponent would Special Summon a monster(s) (Quick Effect): You can detach 2 materials from this card, and if you do, negate the Summon, and if you do that, destroy that monster(s). If this card has "Number 79: Battlin' Boxer Nova Kaiser" as material, it gains this effect. ● Once per turn, when an attack is declared involving your "Battlin' Boxer" monster and an opponent's monster: You can send 1 "Battlin' Boxer" monster from your hand or Deck to the GY, and if you do, attach that opponent's monster to this card as material.

Weekly price history

Week	Market price
2026-W31	$0.57
2026-W32	$0.57
2026-W33	$0.53
2026-W34	$0.53
2026-W35	$0.53
2026-W36	$0.53
2026-W37	$0.51
2026-W38	$0.51
2026-W39	$0.51

Questions

How much is Number C79: Battlin' Boxer General Kaiser 10300821/62 worth?

Number C79: Battlin' Boxer General Kaiser from Legendary Duelists: Soulburning Volcano (10300821/62) has a market estimate of $0.51, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Number C79: Battlin' Boxer General Kaiser 10300821/62 rare?

It is a Super Rare from Legendary Duelists: Soulburning Volcano, a 62-card set.

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