Natasha Romanoff was trained from a young age to cultivate a very specific set of skills in a Russian facility called the Red Room. There she honed the skills that would turn her into a human warrior who continues to stand shoulder-to-shoulder with super soldiers, Asgardians and people in armored suits. However, she eventually eschewed her KGB masters, switched allegiances and began working for the good guys.
Trained by the Best
Exhibiting no super human abilities, the Black Widow boasts ultimate human levels of strength, agility, and stamina. She is extensively trained to near perfection in a variety of fighting styles, such as karate, judo, kung fu, and wrestling, and with all manner of weapons—both traditional and high-tech—combined with her background in gymnastics, acrobatics, and ballet to always accomplish her mission.
She can use a simple handgun just as well as a Chitauri battle staff or even Captain America's shield. Her signature weapons include dual batons, a pair of Glock 26s and the Black Widow’s Bite—bracelets that discharge electricity. Romanoff also displays great skill when it comes to hacking in computers and technological systems to dig for information or regaining control.