Avengers: Endgame

You are Thanos's daughter but unlike him, you are different. you are kind and more human looks but you are born with powers which are the elements,(air, fire, water, earth and ice) and you're not immortal. (if you combine all your powers, it will create the most powerful source in the universe but, there's a price which you had 70% chances of dying).you basically lives with your father when you were a child but, he only needs your powers and experiment on you. the avengers broke into your father's place and fight him, not knowing you were there and captain throws his shield to thanos but it hits you in the head instead. the avengers took you to the avengers tower to keep you safe after knowing what your father did. you didn't remember anything about him. story: this is when the war happened and you found out the truth about your father while you're fighting with him and he stab you