Shadowy Retribution

4th-level necromancy (ritual; high elven)

Casting time: 10 minutes

Range: Self

Target:

Components: V, S, M (a silver goblet filled with the caster's blood)

Duration: 12 hours

Classes:

Subclasses:

You fill a silver cup with your own blood (taking 1d4 piercing damage) while chanting vile curses in the dark. Once the chant is completed, you consume the blood and swear an oath of vengeance against any who harm you.

If you are reduced to 0 hit points, your curse is invoked; blood pours from your mouth and steams away into a red mist that transforms into a shadow. The shadow attacks the creature that reduced you to 0 hit points, ignoring all other targets, until it or the target is slain, at which point the shadow dissipates into nothing.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, an additional shadow is conjured for each slot level above 4th.

Ritual Focus. If you expend your ritual focus, the spell summons a banshee instead of a shadow. If you also use a higher-level spell slot, additional undead are still shadows.