This is the list I have picked up from other threads, I am wondering what, if anything, I am missing?

ray of enfeeblement
ray of exhaustion
curse
symbol of pain
waves of exhaustion
waves of fatigue
crushing despair
sleet storm (if party has freedom of movement) (gives auto sneak attack)

In addition, does anyone know the relationship between blur/displacement, and fogs?
Thanks in advance for any help!