Casting Time 1 standard action
Range medium (100 ft. + 10 ft./level)
Target all creatures in a 15-foot radius
Duration 1 round/level
Saving Throw Will negates; Spell Resistance yes
You overload the target’s sensory system. In effect, the cascade buries the senses of the target creatures (even those with blindsight, tremorsense, touchsight, or other esoteric methods of sensing the environment) with random sensations for the duration. The creatures are treated as if blinded. However, from round to round, an affected creature has a chance to sense normally. Each round on the creature’s action, roll 1d4. On a roll of 1-3, the target does nothing for 1 round as it stands attempting to re-establish contact with its senses. Rolling a 4 frees the creature of the effect for 1 round.
Sense-blocked creatures that are attacked (and damaged) are shocked out of their sense deprivation for 1 round – they can attack or attempt to flee however they desire on their next action. The following round they are subject once again to the sensory cascade (unless they are continually attacked each round).