Badass Rank

Overview
Badass Rank is earned by completing challenges. Some challenges are repeating, which means that there is theoretically no maximum to the Badass rank a character can achieve.

Every so many Badass Rank will award the player with a Badass Token, which can be spent on one of five randomly selected stat upgrades out of a list of fifteen possible choices.

Badass Rank and Badass Tokens apply to all of a player's characters. They can be disabled if the player wishes.