Blindness or deafness

Blindness or deafness was a necromancy spell similar to the abjuration spell cause blindness or deafness which was the reverse of cure blindness or deafness  (shown in the infobox for comparison).

Effects
Upon a successful touch attack, the victim was either blinded or deafened at the choice of the caster. This condition was permanent until cured or dispelled. Only living creatures were affected by this spell.

Sundering
After the sundering this spell had a range of 30 ft (9.1 m) and the number of possible targets increased with the level at which it was cast. This version of the spell lasted for one minute. All targets had a chance to resist blindness or deafness, but they had to continually do so until the spell expired or they were struck blind and deaf.

Components
The necromantic version of this spell required only a verbal utterance to cast. The abjuration versions also required a somatic gesture.