Survivor Natasha

Hailing from a universe where Ultron was successful in wiping out nearly all life on not only Earth but the entire universe, Natalia Alianovna Romanoff is the last living organism in her universe. Equipped with her adoptive father's shield and Hawkeye's bow helped defeated her version of Ultron, who had gone on an attempted genocide across the multiverse, with the assistance of the Guardians of the Multiverse; Once Ultron was defeated, Natasha was brought to a different universe where almost all the key members of the Avengers had died, including a version of herself.

But even if this is an alternate version of the Black Widow we know, one that now lives in a universe that she doesn't originate from; one constant is that Natasha will always find a way to lose her clothes.