[Blood Servant] is a means used by Bloodline Demons to control other creatures.
There are actually many constraints when using this ability.
The biggest constraint is blood, requiring the target to have blood and to be invaded by Bloodline strength to be effective.
This means that Bloodline Demons cannot enslave mechanical units of the Sikes Civilization.
The control effect of [Blood Servant] varies, and the actual effect is determined by the level of the Blood Master.
[Blood Servants] made by High-ranking Bloodlines have better control effects.
And the [Blood Servants] of the Bloodline Prince have higher effects.
Therefore, when Lu Heng discovered that [Spiritual Dominance] was ineffective against this Bloodline Servant, he could already confirm that the opponent was indeed a Bloodline Prince.
Because only the Bloodline Servant enslaved by a Bloodline Prince can have a control level of A-level.
