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.

I'm Just Gonna Attack! · Speed Duel: Battle City Box 300302010/223

I'm Just Gonna Attack! (Speed Duel: Battle City Box 300302010/223), Common. Market price $0.23, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Once per Duel, during your Main Phase, you can make 1 monster you control gain 100 ATK until the end of this turn, also, during the Battle Phase this turn, negate your opponent's first Trap Card or effect that resolves, and Set it instead of sending it to the GY.

Weekly price history

Week	Market price
2026-W31	$0.20
2026-W32	$0.20
2026-W33	$0.20
2026-W34	$0.20
2026-W35	$0.20
2026-W36	$0.23
2026-W37	$0.23
2026-W38	$0.23
2026-W39	$0.23

Questions

How much is I'm Just Gonna Attack! 300302010/223 worth?

I'm Just Gonna Attack! from Speed Duel: Battle City Box (300302010/223) has a market estimate of $0.23, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is I'm Just Gonna Attack! 300302010/223 rare?

It is a Common from Speed Duel: Battle City Box, a 223-card set.

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