You magically imbue your quiver with necrotic energy. If a target is hit by a ranged weapon attack using a piece of ammunition drawn from the quiver, the target takes an extra 1d6 necrotic damage. Undead and plant creatures automatically take the maximum necrotic damage if struck by this ammunition. The spell’s magic ends on the piece of ammunition when it hits or misses, and the spell ends after ten pieces of ammunition are used.

When you cast this spell using a spell slot of 4th level or higher, the amount of ammunition you can affect with this spell increases by two for each slot level above 3rd.