Blood Shards

Make a ranged spell attack against one creature you can see within range. On a hit, the creature takes 4d8 necrotic damage and has disadvantage on CON saves until the end of their next turn as you send shards of blood that rip holes through the creature's body. This spell is ineffective against magic that blocks the Magic Missile spell.

The blood needed for this spell takes a toll on you, dealing 2d8 necrotic damage to yourself.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, both the amount of damage the target takes and the amount of damage you take increases by 1d8 for each slot level above 2nd.