Since Sati was the representation of the external potency of the Lord, it was in her power to vanquish many universes, including many Daksas

Expressions researched:
"Since Satī was the representation of the external potency of the Lord, it was in her power to vanquish many universes, including many Dakṣas"

SB Canto 4

Since Satī was the representation of the external potency of the Lord, it was in her power to vanquish many universes, including many Dakṣas, but in order to save her husband from the charge that he employed his wife, Satī, to kill Dakṣa because he could not do so due to his inferior position, she decided to give up her body.

SB 4.4.18, Translation and Purport:

Therefore I shall no longer bear this unworthy body, which has been received from you, who have blasphemed Lord Śiva. If someone has taken food which is poisonous, the best treatment is to vomit.

Since Satī was the representation of the external potency of the Lord, it was in her power to vanquish many universes, including many Dakṣas, but in order to save her husband from the charge that he employed his wife, Satī, to kill Dakṣa because he could not do so due to his inferior position, she decided to give up her body.