Crimson Spear

You create a spear of blood and throw it at one creature within range. Make a ranged spell attack against the target. On a hit, the target takes 10d8 piercing damage. Hit or miss, the spear then explodes. The target and each creature within 10 feet of it must succeed on a Constitution saving throw or take 6d6 necrotic damage and be affected by the hemorrhage  status effect. On a successful saving throw the target and each creature takes half damage and is not affected by hemorrhage.

Until a creature takes an action to stop hemorrhaging, the target takes 1d10 necrotic damage at the start of each of its turns. Undead and constructs can not be affected by the hemorrhage status effect. 

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the necrotic damage increases by 1d6 for each slot level above 5th.