Necromancy

From Ardrana

Necromancy is one of the most restrictive of all spell schools. It deals with dead things or the restoration of life, limbs, or vitality to living creatures. Although a small school, its spells tend to be powerful. Given the risks of the adventuring world, necromantic spells are considered quite useful.

Note: Necromancy as described here originally appeared in the 2nd Edition Player's Handbook for Advanced Dungeons & Dragons from TSR. Its use here is for the purposes of providing context for the campaign only.