Plant the seed of a demon from another plane in target and watch as the target panic more and more as it grows within them until they are blasted with demonic, black energy from within.
Target will start trembling with anxiety, pain and fear and will have -10 on all attacks. At the end of duration, the target takes 3d10 damage. If the target successfully attacks you, during the duration, the seed dissipates. If the seed blasts, target will be fearful of caster and only attack caster as a last resort and at -10 to all attacks (+ enhancement).