Blood Mark

Level: 1st-level Necromancy

Casting Time: 1 bonus action

Range: 60 feet

Components: V, S

Duration: Concentration, up to 1 minute

Description: You sacrifice 1d4 hit points to mark a creature within range with a dark sigil visible only to you. While the mark persists, the creature takes an additional 1d6 necrotic damage whenever it takes damage from your attacks or spells.