What you need:
Voice
Strong will to hurt someone
Best between 10:00pm and 3:00am

Chant:
"Oh by the power of the moon, I cast a spell on (insert enemy(ies)), you will be harmed by the power of EvanSance, high priestess of the moon to (insert the way(s) you want to hurt them) so mote it be"

Note: This lasts for approx. 2 days, however, if casted at midnight, it'll only last for approx. 1 day.