coagulation

Upon touch, solidify the blood of a creature/humanoid. The target must succeed on a Constitution saving throw or have the Paralyzed condition for the duration. At the end of each of its turns, the target takes 1+1d4 necrotic damage and repeats the save, ending the spell on itself on a success.

Using a Higher-Level Spell Slot. You can add an aditional 1d4 for each spell slot level above 3.