The Rise of the Blue Phoenix

Ashley Romanova. The adopted daughter of Natasha, an Avenger since she was only the mere age of 12.

After the alleged death of Tony Stark, and the events of Endgame, Ashley is now the new owner of the Avengers Facility after it was fixed. She now is the new leader of the Avengers, and knows she has a heavy burden on her shoulders.

When a mysterious woman appears, someone who has similar powers to her, she must stand her ground, for the only way she can learn how to defeat this person who craved destruction, was if she mastered her powers, which would only work if she learns how to control the cosmic energy within her.
Will she be able to save her beloved city, and learn how to control her new powers? Or will this woman destroy everything she was trying to hard to build and keep safe?

(This is going to be about my oc in the Marvel Universe!!!)