You will need the following items for this spell:
Hatred of your enemy
Focus
Experience of magic
This spell will cloud your enemies mind with bad thoughts
Think of your enemy and imagine his/her mind being clouded by dark mist. Then think of all the scary things creeping into their mind. After that say " Creature, creature of the night give my foe a horrid fright" " Cloud his mind with thoughts unknown, untill his fears and scares are shown".