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.

Dark Contract with Patent License · Battle of Chaos 33814281/102

Dark Contract with Patent License (Battle of Chaos 33814281/102), Super Rare. Market price $0.12, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

If your opponent Special Summons a monster(s) with the same card type (Fusion, Synchro, Xyz, or Link) as a "D/D/D" monster you control (except during the Damage Step): You can inflict 1000 damage to your opponent, also, while this card is on the field, your opponent cannot Special Summon monsters with the same card type as that Special Summoned monster for the rest of this turn. If this card is sent to the GY: You can add 1 "D/D" monster from your GY, or 1 face-up "D/D" Pendulum Monster from your Extra Deck, to your hand. You can only use this effect of "Dark Contract with Patent License" once per turn.

Weekly price history

Week	Market price
2026-W31	$0.17
2026-W32	$0.15
2026-W33	$0.15
2026-W34	$0.15
2026-W35	$0.15
2026-W36	$0.15
2026-W37	$0.13
2026-W38	$0.12
2026-W39	$0.12

Questions

How much is Dark Contract with Patent License 33814281/102 worth?

Dark Contract with Patent License from Battle of Chaos (33814281/102) has a market estimate of $0.12, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Dark Contract with Patent License 33814281/102 rare?

It is a Super Rare from Battle of Chaos, a 102-card set.

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