Boil Blood

Channeling the primal power of hemocraft that can be so potent when one is in rage, the caster reaches out towards a target and forces them to make a Constitution saving throw. On a success, the target takes half of the damage rolled by this spell. On a failure, two things happen to the target.

Blood spurts out of their pores, burning as it expands past the point where their vessels can contain it. They bleed profusely out of their orifices and pores, suffering 5d10 necrotic damage and 5d10 fire damage. 

The caster picks a region on the target's body. It can be arm, leg, chest, or head. The regions each have the following effects:

• Arm: The target has disadvantage on strength and dexterity based attacks. Additionally, if they attempt to cast the spell with a somatic component, any attempts to counter the spell have the advantage on the roll. This lasts until the next dawn. 
• Leg: The target's speed is halved, they have disadvantage on dexterity saving throws, and each time they use an ability to Dash (including legendary actions), they take 1d10 necrotic damage. These effects last until the next dawn. 
• Chest: The target has disadvantage on constitution saving throws. They immediately lose concentration on any spell or effect they were concentrating on. 
• Head: The caster must make a Medicine check against the save DC of the target (or, 8 + its proficiency bonus + its primary ability score). If it exceeds the DC, the caster can pick one ability of the target's that they are familiar with. The target cannot use this ability in any capacity for 1d4+1 rounds. This ability must be specific, and cannot be standard ones such as Multiattack or Spellcasting. For example, successfully overcoming a succubus/incubus with this ability would allow you to prevent them from using their charm ability. 

Additionally, if the target fails the original save DC by 5 or more, the secondary effects become permanent. They cannot be undone by anything less than a Regenerate spell.