Deck builder
Theory craft
Theory craft decks →Deck builder →
Your deck
- • Choose a Legendary.
- • Add base cards until you reach 12.
Legendary
Pick a Legendary from the listBase cards 0/12 · each card counts as 2 copies
Mana curve
Actions
To publish it or save it to your profile, the deck needs a Legendary and 12 base cards.
Card pool
the cards of the game plus the ones not in it yet, with their last known costs and stats
Units: cards with power and health that go on the board. Spells: an effect only, no power or health.
Card not in the database?
Add it by name so you can finish the deck; we will match it when the card is added.
The Theory craft is the deck builder with one more thing: next to the cards in the game you also find the ones that are not in it yet. Build your deck with the same rules, share it with a link, save it privately or publish it with a guide: it goes into the theory craft decks, which the community can vote on and discuss like any other deck.
Cards not in the game yet86 cards (9 Legendaries) that are not in the game today, marked “Not in game”. Their cost, stats and text are the last known ones: they have not been checked in the game and may change when the cards arrive. A deck that uses them has no game code.
Deck rules
The rules are the game’s: one Legendary plus twelve different cards, two copies each (25 cards).
Source: Koin Games team AMA. Conquest mode follows the Crimson Cup rule announced on 24 September 2026: at least 8 unique cards between any two decks (each card counts once, whatever its copies). With different Legendaries, that means at most 5 base cards in common.
25 = 1 + 12 × 2 · OriginsMeta is an independent project and is not affiliated with Koin Games.