Help on skill unlife lore

Current upkeeper: Unknown
Skill cost      : 0
Skill type      : automatic
Associating with the dead is not an easy task to one who
wants to control the wailing spirits that yeard for final
rest and out from the bounds of the material realm. The
knowledge of such being will help the skilled conjurer
to control and use their abilities and power better,
because there is always a risk that the unsatisfied
spirits might turn against their summoner.

Undead mastery < List > Unsettle