ALRB pg113 said:This spell allows the caster to control one
lesser undead for ten minutes. Tasks may not
involve anything a trained animal could not be
taught: “Guard this” is fine, but “Count all the
leaves on the tree” requires sentience and will
not work. This spell will also remove all Turn
Undead effects.
The description for the Control Undead effect seems to pertain only to undead of Mindless or Low Intelligence.
If it is used on a lesser Undead of normal or higher intelligence does it reduce them to only being able to follow simple commands, does it act more like a Charm effect, or somewhere in between?