You can able to Blindness/ Deafness 5e a foe. You have to chose one creature which you can see within a range for making a constitution saving throw. But if it fails, then the target is either blinded or deafened (depends on your choice) for a specific duration. So, at each of its turns ending points, the target can able to make a constitution saving throw, Finally this Blindness 5E spell would end on a success.
Check more about: tidal wave spell 5e
At Higher Levels:
Whenever you cast this spell by using the spell slot of 3rd level or more than the 3rd level, you can able to target one additional creature for each slot above the 2nd level.
Attributes Of Blindness Deafness 5E
|Casting Time||1 action|
|Classes||Bard, Cleric, Sorcerer, Wizard|