Umbral Sacrifice

Umbral Sacrifice allows the caster to draw upon their own life force to manipulate shadows and create a potent burst of shadowy magic.

When casting Umbral Sacrifice, the caster willingly sacrifices a portion of their health, taking necrotic damage equal to 1d6 + 1 hit point per character level. The caster then releases this energy in a burst of shadow magic.
Choose one of the following effects when casting Umbral Sacrifice:

Shadow Bolt: The caster can target a creature within 60 feet and unleash a bolt of shadowy energy. Make a ranged spell attack against the target. On a hit, the target takes 2d10 necrotic damage.

Shroud of Shadows:The caster shrouds themselves in a cloak of shadows, gaining advantage on Dexterity (Stealth) checks for the next minute.

The caster must choose the effect at the time of casting. The chosen effect occurs immediately after the Umbral Sacrifice, and the spell ends.

At Higher Levels: When cast using a 3rd-level spell slot or higher, the damage of Umbral Bolt increases by 1d10 per level, and the duration of Shroud of Shadows extends by an additional minute for each slot level above 2nd.