Scar vs The Green Lantern Corps.

Scar - Her true name is unrevealed. Her namesake is gained due to a distinctive scar on the right side of her head after fighting the Anti-Monitor. Subsequently, she began to deviate considerably from the traditional personality of a member of the Guardians. She was depicted as dark, militaristic, and fascinated by the power of death. Her eyes, which usually bore the symbol of the Green Lantern Corps in the pupil, contained the symbol of the Corps with whom she was presently associating (e.g., the symbol of the Sinestro Corps appeared in her pupils when she informed them of Sinestro's impending execution). She began encouraging the Green Lantern Corps to take on a more aggressive stance in the pending War of Light.