As everyone knows, low-rank undead spirits lack their own cognitive abilities and can only execute the commands of their commander in a mechanical and rigid manner.
A bit like the Insect Race in science fiction works, they are numerous and thoughtless, requiring a brain to manipulate them before they can be transformed into killing machines on the battlefield.
The Undead Wizard Salum, a Corpse Witch Bloodline Transcendent, was currently hiding far away from the battlefield, monitoring and manipulating the situation through an invisible banshee.
Speaking of which, the function of the invisible banshee as a camera and command terminal was developed by his former colleague Ansalra. However, that fellow was recently assassinated under mysterious circumstances in Alcazava's Mourning Palace. It was said that the "Edge of Mourning" Resentful Spirit Demigod even pursued the assassins but returned fruitlessly.
