¿Who is stronger, Onslaught or Black Widow?

Onslaught is a comic book character created by Marvel Comics and is known to be one of the publisher's most powerful and feared villains. He is a cosmic being created by merging the minds of Charles Xavier and Magneto, two of Earth's most powerful mutants. Onslaught has a number of supernatural powers, including the ability to manipulate people's minds and behaviour, superhuman strength and the ability to manipulate magnetism. He is also virtually indestructible, making him a formidable foe for any hero who confronts him.

Black Widow is a well-known character in the Marvel Universe. She is a skilled fighter, a spy, and an Avenger. Natasha Romanoff, also known as Black Widow, has been a part of Marvel Comics since 1964. Natasha was born in Russia and was trained as a spy from a young age. She eventually defected to the United States and became a member of S.H.I.E.L.D., where she began to work with superheroes. Black Widow has been affiliated with several superhero teams, including the Avengers, the Champions, and S.H.I.E.L.D. Black Widow's most notable superpower is her combat skills. She has trained in various forms of martial arts and is proficient in using weapons such as guns, knives, and batons. She is also an expert in espionage, able to infiltrate and gather intelligence on her targets. In addition to her physical abilities, Black Widow is also known for her tactical mind. She is a skilled strategist, able to analyze situations and devise plans to overcome her opponents. She is also a master of disguise, able to blend in and infiltrate her surroundings unnoticed. Another unique aspect of Black Widow is her enhanced physiology. She has been given a serum that slows down her aging process, making her live longer than the average human. Additionally, she has a heightened immune system, allowing her to resist certain poisons and diseases. Overall, Black Widow's strength lies in her versatility. She is a skilled fighter, an intelligent strategist, and a master of espionage. Her abilities make her a formidable opponent, and an invaluable asset to any team she works with.