This powerful spell allows the caster to control the actions of any type of undead creatures as if they were intelligent creatures under the effect of a charm person spell. Undead so controlled can perform precise tasks for the caster.
The caster can affect one undead that is within the area of effect for each of his experience levels. In cases of mixed types of undead creatures, the weakest are affected first, then those with more Hit Dice. All undead affected must be within a cubic area 50 feet on a side.
Undead are permitted a saving throw vs. spell to avoid this spell. Liches and undead with 10 or more Hit Dice have a bonus of +4 to the saving throw to avoid the effects of this spell.
Undead creatures controlled by this spell are treated differently than creatures under the effect of enchantment/charm magic. This special state of mastery lasts until the spell duration ceases, when the undead are restored to their own (often nominal) control. The caster does not need to know any common language with the undead to effect the control. The undead beings can be ordered to perform self-destructive actions —and the caster can even attack them—without the spell being broken.
The material component of this spell is a crushed diamond worth at least 500 gp, which is consumed in casting.
Notes: Very rare spell, originating in the Forgotten Realms setting. Known to be in the Book of Daimos.