When Deathbird becomes Empress , Astra commands the entire Imperial Guard to fight the combined forces of the Starjammers and Excalibur on Earth .
She could claim the power of the Phoenix Force for herself .
When Deathbird becomes Empress , Astra commands the entire Imperial Guard to fight the combined forces of the Starjammers and Excalibur on Earth so that she could claim the power of the Phoenix Force for herself .