Blood Cipher

The caster raises one hand towards the target, when they do so a rune forms Infront of them made of a blood-like substance.

The spell targets one creature in range who then feels their blood spilling to the surface, causing some to escape. The target must succeed on a constitution saving throw or take 3D10 necrotic damage, half as much on a successful save.

Creatures which do not have blood are immune to this spell.

At Higher Levels: When you cast this spell using a spell slot of 3rd level or higher, the spell does an additional 1D10 damage. Additionally, when cast at 6th level or above the spell can target an additional creature within range.