"Searching For The Key Person" 

If their target turned into a spirit...they could try to use shamans to forcibly bond the newly born spirits that were generally weaker than their top-shamans. 

Then, they would use the spirits to guide their own souls to do things for them. 

Now, Ainsley was a spirit, and she had a certain control over her soul, especially when there were no dangerous people around. 

[We need a few days close to a week to fully repair your body. After that, we will remind you and you have to control your soul to enter the body as soon as possible.] 

Caroline slowly stood up, followed by Lyod. The two people calmly slashed their wrists and poured their blood onto the ground. 

Then, using their blood manipulation ability, the blood slowly moved, drawing a complicated magic circle under the baby's corpse. 

The people in this world preferred to call their special abilities as superpowers rather than magic, but with so many unique skills close to magic...