Ethnos
In a 2-player game, how many cards must a band have to place a Control marker?
The two-player band rule states the count directly, with an example.
- Ethnos rulebook · Rulebook · Playing a Band of Allies for 2-Player Games
More cards than the total number of Control markers of both players in that Kingdom, not just your own. With two of yours and one of your opponent's there, you need a band of at least four cards.