Blood Infusion

You infuse a weapon you are holding with your own blood, imbuing it with dark power. For the duration of the spell, the weapon deals an extra 1d4 necrotic damage on a hit.

If a creature targeted by an attack with this infused weapon dies, you take 1d4 necrotic damage as the blood magic exacts its toll.

The weapon glows with a sinister red aura while under the effects of this spell, and the necrotic energy can be felt by those around it.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the additional necrotic damage dealt by the weapon increases by 1d4 for every two slot levels above 1st.