Hex

Duration: 1 hour, Concentration
You place a curse on a creature, you deal an extra
1d6 necrotic damage to the target whenever you
hit it with an attack. Also, choose one ability, the
target has disadvantage on ability checks with the
chosen ability.If the target drops to 0 HP, you
can use a bonus action on your turn to curse a
new creature. A remove curse cast on the target
ends this spell early.
At Higher Levels. 3rd/4th lvl = 8 hours,
5th or higher = 24 hours.