
- BGG rank
- BGG #10,471
- BGG rating
- 7.0
Kamigami Battles: River of Souls
- 2–6 players
- 45 min
- Complexity 2.0/5
- 2018

Rules assistance for Kamigami Battles: Set, the Usurper
Plain-language explanations of turns, card effects and disputed situations, with official source references and saved question history.

What would you like to know?
Answers come from the official rulebook, with the page to check.
Kamigami Battles: Set, the Usurper is an expansion for Kamigami Battles: Battle of the Nine Realms released in 2024 for 2–6 players, 45 minutes per game, and ages 12 and up. Its main mechanics are Variable Player Powers, Hand Management, and Deck, Bag, and Pool Building.
Released via the Japanime Games patreon. Set, the Usurper is promo card # KBP-015 Act: Once per turn, take a RED Warrior from your Discard pile, and play it as if it was valid in the current chain. Act: Pay 2 energy to add a Warrior from ANY discard pile to your hand.
Kamigami Battles: Set, the Usurper supports 2–6 players according to the catalogue. This range comes from the publisher’s listed player count, so the game can be set up for any group size within it. Some setups, rules and scoring details may still vary by player count, so check your edition’s rulebook for the exact configuration.
The listed playing time for Kamigami Battles: Set, the Usurper is 45 minutes. This is the publisher’s estimate for a full game. The actual duration depends on the group, the player count and familiarity with the rules: first sessions usually run longer, while experienced groups often finish faster. Setup and teaching time are not included in this estimate.
The catalogue lists Kamigami Battles: Set, the Usurper for ages 12 and up. This is the publisher’s recommendation and reflects reading demands, rule complexity and small components rather than theme alone. Younger players can often join with help from an adult, so check the age guidance on your edition and consider your group’s experience with board games.
Kamigami Battles: Set, the Usurper belongs to these categories: Card Game, Expansion for Base-game, and Mythology. Its main mechanics are Variable Player Powers, Hand Management, and Deck, Bag, and Pool Building. Categories describe the theme and setting of a game, while mechanics describe what players actually do on their turns. Each mechanic links to a catalogue hub with similar games, which helps when you want something comparable.
The catalogue lists Kamigami Battles: Set, the Usurper as an expansion for Kamigami Battles: Battle of the Nine Realms. Expansions add new content, rules or scenarios to the base game and usually cannot be played on their own, so you need Kamigami Battles: Battle of the Nine Realms to use it. Check that your edition of Kamigami Battles: Battle of the Nine Realms is compatible, as some expansions were revised between editions.