Hex of Decay

Effect

As an Action, you curse a creature within 30 ft with rotting decay. The target must make a Constitution saving throw (DC = 8 + your Proficiency Bonus + your Wisdom modifier). On a failed save, it takes 2d8 chem-toxic damage immediately, becomes Poisoned, and takes 1d8 chem-toxic damage at the start of each of its turns while you concentrate (up to 3 rounds). At the end of each of its turns it repeats the saving throw, ending the effect early on a success. On the initial successful save, it takes half the initial damage and suffers no ongoing effect.