Hemoplague

6th-level Necromancy
Casting Time: 1 action
Range: Self (60-foot line)
Components: V, S
Duration: Instantaneous
You infect creatures around you with a virulent bloodborne disease, sending a blood plague out from you in a 5-foot-wide, 60-foot-line. Each creature in the line must make a Constitution saving throw. On a failed save a creature takes 8d8 necrotic damage and is poisoned. On a successful save, it takes half damage and is not poisoned.
At Higher Levels: When you cast this spell using a spell slot of 7th level or higher, The damage increases by 1d8 for each slot level above 6th.