Bite of the Mamba

4th-level transmutation

Casting Time: 1 bonus action

Range: Self

Components: V, S

Duration: Concentration, up to 1 minute

You gain a bite attack, with which you are proficient, from the snake fangs that sprout from your mouth. The next time you hit with the bite attack, you deal 1d6 piercing damage and choose one of the following effects:

• The target must make a Constitution saving throw. On a failed save, they fall prone, their body convulsing uncontrollably for 1 minute, and are paralyzed. The target may repeat the saving throw at the end of each of their turns, ending the effect on themself on a success.
• The target must make a Constitution saving throw. On a failed save, the target’s blood begins to coagulate.

Each hour after the bite, the target suffers 1d4 Constitution loss as the clotting begins to affect their organs. If this damage reduces the target’s Constitution score to 0, they die of heart failure. The target may repeat the saving throw every hour, ending the effect on themself on a success. If this effect is successfully ended, Constitution points lost to this effect return when the target completes a long rest.