Repel undead

Repel undead was a necromantic abjuration spell used to drive undead creatures away from the caster.

Effects
This spell created a powerful compulsion within undead creatures, prompting them to avoid the caster. If any kind of physical barrier prevented the undead from doing this then they simply kept as much distance between them and the caster as possible. This spell was centered on the caster and moved about with them.

Components
In addition to verbal and somatic components this spell required a magnet with a drop of the caster's blood placed at one end and a bone fragment placed at the other..