X-23 is a female clone of Wolverine. Like Wolverine, X-23 has a regenerative healing factor, superhuman strength, senses, speed, agility, and reflexes. She also has retractable adamantium-coated bone claws in her hands and feet.
With a unique ability to control the speed of her own passage through time, Tracer zips and blinks around the battlefield, eluding attackers and sneaking past defenses. A perfect skirmisher hero, Tracer is fragile but hard to hit, keeping one step ahead of her attackers while she harasses and harries the enemy team. Tracer excels at getting behind enemy lines, but it is inadvisable to move her through chokepoints. Should she find herself blinking into an ambush, she can rewind time to her position and state a few seconds earlier, giving her a second chance.
The developers consider Tracer to have one of the most unique play styles in Overwatch.