As the Necromancers knowledge of the undead improves, he is able to harness and divert more powerful spirits to inhabit the corpses of the recently dead. A Necromancer who possesses this skill is able to raise skeletons and skeletal mages of a much more powerful variety.
Skeleton Mastery is a very important skill if you have any intention of using skeletons to help your Necromancer make it through the game. This skill will dramatically improve the life, band damage of Skeletons, Skeleton Mage, and revived monsters.
