Artijar’s Ray of Necrotic Energy

You choose up to 1 target within range. A burst of crackling line of green energy bursts from your hands. The target must make a DC 13 constitution saving throw taking 1d6 necrotic damage on a failed save and half as much on a successful one. You may use this ability 2 times per level within the duration of the spell picking a different target or keeping the same one each time. You may only dude the ability once per action.