Black Blood

As you cast this spell, your blood is transformed into a viscous black ooze. For the duration, you gain the following benefits:

• You are immune to necrotic damage and have resistance to poison damage
• You can add 1d4 to any constitution saving throw you make
• You can use your action to spew black bile in a 15 foot cone. Each creature within that area must make a dexterity saving throw, taking 4d6 acid damage on a failed save or half as much on a successful one. On a failed save a creature is blinded until it uses an action to clean away the bile from its eyes.