Toxic Circulation

Poison infects the blood of a creature of your choice. The target must make a Constitution saving throw. It takes 4d10 Necrotic damage on a failed save, or half as much damage on a successful one. On a failed save, the target also has poison running through their veins for the spell’s duration and are poisoned. At the end of each of its turns, the target repeats the saving throw. It takes 4d6 poison damage on a failed save, and the spell ends on a successful one.