Renegades

Renegades are eternals represented mostly by the color purple. They are the in-between of the Rogues (the bad guys) and the Sentinels (Basically the police.) They are vigilantes, rebellious heroes, they follow no rules but their own, but they get the job done. For many years, they had held a bitter rivalry with the Sentinels, constantly outperforming them in combat with either off-world threats or Rogues, which has caused the sentinels to paint the Renegades in a bad light. Despite this, sentinel and renegade forces treat each other with at least SOME respect. Renegades are created one of two ways: Either a Sentinel is fed up with all their rules and wants to rebel, or a rogue realizes the fault of their actions, and goes to fix themselves.

There is a third way, to be born a rebel. To be born a hero, to selflessly slash at anyone who would do innocent people harm. But that's rare nowadays.