Hemoplague

7th-level necromancy (hemomancy)

Casting Time: 1 action

Range: 60 feet

Components: V, S, (a poison or venom)

Duration: Concentration, up to 1 minute

You draw out a portion of your blood, infecting it with a vile poison before causing it to streak towards creatures within range. As you cast this spell, you must spend a number of hit points, allowing you to target 1 creature for every 5 hit points spent. Each creature must make a Constitution saving throw. On a failed save, a target takes 6d8 necrotic damage and is also infected for the duration. On a success, the target takes half damage and suffers no additional effect. An infected target is poisoned, can’t regain hit points, and whenever they take bludgeoning, piercing, or slashing damage, they take an additional 2d8 necrotic damage as they bleed profusely. A creature repeats the saving throw at the start of each of its turns, ending the effect on a success.

At Higher Levels. When you cast this spell using a spell slot of 8th level or higher, the initial damage increases by 1d8 for each slot level above 7th.