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 79: Battlin' Boxer Nova Kaiser · World Superstars 71921856/50

Number 79: Battlin' Boxer Nova Kaiser (World Superstars 71921856/50), Super Rare. Market price $0.17, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

2 Level 4 monsters Once per turn: You can attach 1 "Battlin' Boxer" monster from your hand or Graveyard to this card as an Xyz Material. This card gains 100 ATK for each Xyz Material attached to it. When this card you control is destroyed by your opponent's card (by battle or card effect) and sent to your Graveyard: You can target Level 4 or lower "Battlin' Boxer" monsters in your Graveyard, up to the number of Xyz Materials this card had on the field; Special Summon those targets.

Weekly price history

Week	Market price
2026-W31	$0.20
2026-W32	$0.20
2026-W33	$0.19
2026-W34	$0.19
2026-W35	$0.19
2026-W36	$0.18
2026-W37	$0.17
2026-W38	$0.17
2026-W39	$0.17

Questions

How much is Number 79: Battlin' Boxer Nova Kaiser 71921856/50 worth?

Number 79: Battlin' Boxer Nova Kaiser from World Superstars (71921856/50) has a market estimate of $0.17, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Number 79: Battlin' Boxer Nova Kaiser 71921856/50 rare?

It is a Super Rare from World Superstars, a 50-card set.

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