Conquest in Origins TCG: how to build three decks that pass the unique-card rule

In brief

• Conquest means bringing more than one deck, different enough from each other, and banning one of your opponent's decks (Koin Games, 25 August 2026); at Big Bob's Playtest Battle each deck also needed a different Legendary.
• At the Crimson Cup (19–25 October 2026) you bring three decks with at least 8 unique cards between each pair. Rules, dates, prizes and check-in are in our article on the Crimson Cup rules: this guide is about building the three decks.
• Koin has not spelled out how unique cards are counted. OriginsMeta counts each card once, whatever its copies, Legendary included: two decks can then share at most 5 cards.
• The deck builder checks all of it in its "Tournament (3 decks)" mode.
• Among the 20 decks published on OriginsMeta by 20:00 CEST on 25 September 2026, 174 of the 176 pairs with different Legendaries pass the rule; the two that fail, both with Buff, miss by one card.

What Conquest asks for

Koin Games used Conquest for the first time at Big Bob's Playtest Battle on 28 August 2026. The announcement on Steam of 25 August describes it like this: "you have to submit multiple decks before the tournament starts that have to be different to each other and you get the chance to ban one deck from your opponent". That time every deck needed a different Legendary and at least nine cards of difference.

For the Crimson Cup, the announcements of 9 and 24 September 2026 set these rules:

• three decks; the announcements don't say whether the Legendaries must differ (at Big Bob's they had to, and in the ban you only see the Legendary);
• at least 8 unique cards between each pair of decks;
• decklists hidden until the top 4: when you ban one of your opponent's decks you only see its Legendary;
• best-of-three matches and a best-of-five grand final; in best-of-five there is no ban and you have to win with all three decks.

The tournament is played on the main demo, with its card list. On 29 September 2026 came patch 0.7, which the team calls the final balance patch before the tournament: Bagheera, Mind Palace and Spellbook now cost one more and Twister Toss has been reworked, so a line-up built before then is worth checking again.

How unique cards are counted

Every deck has 13 different cards: the Legendary and twelve base cards, whose second copy the game adds by itself (25 cards in play). The Crimson Cup announcement does not say how the 8 unique cards are counted. This is OriginsMeta's reading, the one our deck builder and our tournaments apply:

1. each card counts once, however many copies it has;
2. the Legendary counts too: two different Legendaries are always one card of difference;
3. the unique cards between deck A and deck B are the cards of A that B does not have: 13 minus the cards they share.

So "at least 8 unique cards" means at most 5 cards in common between any two of your decks.

A pair right at the limit. 3 Pigs Mid Range (Three Not So Little Pigs) and On Reveal Mid Range (Mulan) share five cards: En Passant, Ali Baba, Bagheera, Frog Prince and Ellen Trechend. In play those are ten of the 25 cards of each deck, but they count as five: 13 − 5 = 8 unique cards, exactly the minimum. One more card in common and the pair would no longer pass.

A pair one card short. Buff (Robin Hood) and FACE IS THE PLACE (Legion of the Dead) share six cards: Musketeer, Defense Matrix, Bagheera, Three Blind Mice, Glinda and Galahad. 13 − 6 = 7: to bring them together, one of the six has to leave one of the two decks.

If Koin counts differently, for example copy by copy, the numbers change: we will update this guide and the builder as soon as the rule is spelled out.

Build the three decks in the deck builder

1. Open the deck builder and switch from "Single deck" to "Tournament (3 decks)".
2. Decks A, B and C each have their own tab. Build them from the card pool, or paste a game code (KGBLDC…) in Import: the import only changes the deck you are on.
3. On any community deck page, "Open in the deck builder" loads that list into the active deck and leaves the other two as they are: a quick way to try pairs of published decks.
4. The "Conquest check" box shows, for each pair, how many unique cards differ: green with ✓ from the minimum up, red with ✗ below it. Hovering a number lists the shared cards. The minimum is 8, the Crimson Cup value, and you can change it (Big Bob's Playtest Battle asked for 9). The check also flags two decks with the same Legendary.
5. When the three decks are legal and far enough apart, the box says OK ✓. Copy each deck with "Copy game code" and paste it into Origins.

The builder saves the three decks in your browser as you go. Tournaments created on OriginsMeta can use Conquest too, with 2 to 4 decks per player and a minimum chosen by the organiser, and each tournament's builder applies those rules. The Legendaries to choose from are all in our guide to the 11 Legendaries.

The Crimson Cup is the tournament of Steam Next Fest, and ranked opens in the demo with the same festival: everything about the festival is in our Steam Next Fest guide, and what is confirmed about ranked in its own guide.

Community decks that pass, and two that don't

By 20:00 CEST on 25 September 2026 OriginsMeta has 20 published decks, led by 10 different Legendaries. That makes 190 possible pairs:

• 14 pairs share the Legendary: the deck builder flags them, and at Big Bob's Playtest Battle they could not have gone in the same line-up. They are often versions of one list, like Healing Healsing, Cure Control and CONTROL, three Van Helsing decks that share 12 of their 13 cards;
• of the other 176, 174 pass the 8-card rule, and 30 of them share no card at all;
• two fail, both at 7 and both with Buff: Buff and FACE IS THE PLACE, seen above, and Buff and AGGRO /MIDRANGE PIGS GM (Three Not So Little Pigs), which share Bagheera, Mind Palace, Three Blind Mice, Beast, Glinda and Galahad.

Some pairs with their real numbers:

Nine pairs sit exactly at 8:

• 3 Pigs Mid Range + On Reveal Mid Range
• AGGRO /MIDRANGE PIGS GM + FACE IS THE PLACE
• CONTROL + Spellcast
• Cure Control + Glinda Reborn
• Cure Control + Spellcast
• FACE IS THE PLACE + Glinda Reborn
• Healing Healsing + Spellcast
• Qoh + Value Board
• Qoh + VALUE MAXXING

Of the 1,140 possible trios of published decks, 867 have three different Legendaries and pass the rule on all three pairs.

These are counts, not advice: they say which decks can stand together under the rule, not which line-up wins. How each deck plays is on its page, in its author's guide.

What we don't know yet

• How Koin counts the 8 unique cards: the announcement of 24 September does not say.
• Whether the three Crimson Cup decks must have different Legendaries: the announcements do not say.
• The final card list: the tentative list has been in the game since 21 September. Patch 0.7 of 29 September is, in the team's words, the final balance patch before the tournament, but its notes do not say whether the card list is final.

Sources

Koin Games' posts on Steam of 25 August (Big Bob's Playtest Battle), 9 September 2026 (the tournament of Steam Next Fest) and 29 September 2026 (patch 0.7), the Crimson Cup announcement on the official Discord (24 September) and the decks published on OriginsMeta by 20:00 CEST on 25 September 2026, counted with the same function the deck builder uses.