How can the 3rd-level spell hunger of Hadar be used to deal damage effectively?
- Although the spell's area covers a 40-ft. diameter and creates difficult terrain, enemies can dash through it or out of it and be dealt little damage.
- The spell's blinding effect doesn't help the rest of the party much: devil's sight can't see through it—the area's just black not of darkness.
The damage just can't compare to fireball under the best of circumstances. Does the spell have some secret use or benefit that I'm missing? Why is this seemingly subpar spell a 3rd-level spell?