C1474 Understanding the Power of Time
This was the same thing as the power of death.
However, after the power of death extracted his life force, as long as he didn't die, it could still be replenished.
For example, they could find warriors who cultivated life force from the Life and Death Tribes to help them regain their life force, or they could even find the comprehension of the life attribute to help them regain their life force