10 seconds

A Duel requires a second.

Thus, 10 duels requires 10 seconds.

So the game is based around playing rock paper scissors with seconds choices to win ten duels. Each second you pick adds certain things to your character. These things stack, so once you pick say the Russian, you keep the bonus the rest of the game.

After each duel, you can swap one of your unused seconds for the second that was just used against you.

The goal is to win ten duels and not die.