Savitar’s face was scarred due to a confrontation with the Flash, where he was struck by lightning.
In the context of the DC Comics universe, particularly within the CW’s television show “The Flash,” Savitar is a self-proclaimed god of speed. He is actually a time remnant of Barry Allen, created during his battle with Zoom. Savitar’s face is heavily scarred, and the reason behind this disfigurement is revealed in the series.
During one of the episodes, it is explained that Savitar, after becoming a time remnant, was shunned by Team Flash and fought to establish his own legacy. In his quest to become a god, he fashioned a suit of armor to contain his immense speed and energy. The scarring occurred when he was struck by lightning during a confrontation with the Flash. This event not only scarred his face but also further fueled his hatred and vendetta against Barry Allen and his allies. The scar is a constant reminder of his origin and the pain he endured, which is why he wears the armor, not just for protection but also to hide his disfigurement and to intimidate his enemies.