Quoting Wikipedia
A Cold War pilot for a third-world nation, the man who would become known as Savitar was to test a supersonic fighter jet. As he reached top speed, his plane was struck by what appeared to be lightning, and he went down in hostile territory. Discovering he could defeat the enemy by moving at super-speed, he became obsessed with speed, naming himself after Savitr the Hindu "god of motion", and dedicating his life to unlocking its secrets. As Savitar studied, he discovered new powers that no other living speedster has mastered. He can protect himself in a null-inertia force field, give speed and kinetic energy to objects or people, even those in a
rest state, he could also heal his own injuries almost instantly.
Savitar’s obsession gained followers, and he became the leader of a cult. In search of more knowledge, he sought out the only super-speed hero operating at the time: Johnny Quick. This encounter became a battle, the tide of which was turned with the arrival of Max Mercury, who led Savitar toward the Speed Force, but caused him to bounce off.
Savitar reappeared decades later to find that his cult had grown in his absence, awaiting his return. He recruited former Blue Trinity member
Lady Flash (Christina Alexandrova), and discovered a way to use her speed to divert all energy from the Speed Force to his own army of ninjas. He then sought to eliminate the competition: Flash (Wally West), Impulse, Golden Age Flash (Jay Garrick), Johnny Quick, Jesse Quick, XS, and especially Max Mercury.
Fortunately, Wally’s direct line to the Speed Force prevented Savitar from stealing his speed, and a coalition of just about every speedster (except for Red Trinity), foiled his plans. Hell-bent on at least destroying Flash’s world in retribution, he led the Flash on a worldwide race of destruction, until Flash chose to give Savitar what he wanted: union with the Speed Force. His earlier encounter had shown him that the others who had arrived before would deal with Savitar as they saw fit.
In
The Flash Rebirth mini-series, Savitar is able to escape from the Speed Force. He is run down by the recently returned to life Barry Allen; however, when Barry touches him, Savitar disintegrates, leaving only a pile of bones. It is revealed that Reverse-Flash altered the Speed Force and Barry to make the Flash shift in reverse, and cursed to kill every Speed Force user with a single touch, though it seemed to be undone by the defeat of Professor Zoom during the conflict between the two speedsters. Thus far, Savitar, Lady Flash (Lady Savitar at the time) and Johnny Quick have been killed by this effect.
Savitar can move at super speed, and is able to lend or steal speed from moving objects. He has accelerated healing due to increased metabolism and can generate a null inertia force field.
