The only way to determine if the Nine-Headed Phoenix is still alive is to lock onto Su Chen.
That is a fair assessment.
Dou Qu and his companion do not care in the slightest about the life or death of their sacrificial slaves, as they can always refine more. Their sole concern is the Nine-Headed Phoenix; they certainly do not want anything to happen to the creature, given that every Nine-Headed Phoenix exists at the Transcendence Universe Realm.
Chapter 1633