TP

You have been raised in a lab ever since you were three, especially training to fight the avengers. The avengers know you are dangerous, but they're unaware of your background. That you get exhausted mentally and physically from the tests, surgeries and endless endurance of all the pain. You have different abilities, ones that you shouldn't have survived but you did. Yelena has always had an interest in you, but she only sees you when fighting, but that doesn't stop either of you from slightly flirting.