Create greater undead

Create greater undead is a necromancy spell that creates more powerful undead than the lesser create undead spell.

Effect
This spell functions in the same manner as create undead, except that it allows the caster to create more powerful and intelligent sorts of undead. The type of undead created is based on how powerful the caster is. In order of magnitude, these types are: mummies, spectres, vampires, and ghosts.