Host Regeneration

You redirect your efforts to stimulate regeneration of host tissue. The host regains a total of half their maximum hit points. For the duration of the regeneration until the beginning of your next turn, the host will have disadvantage on any attack rolls made against them, automatically fail an dexterity or strength saving throws made against them while regenerating and enter a state of unconsciousness where they have no awareness of their surroundings. 

The target's severed body members (fingers, legs, tails, and so on), if any, are restored after 2 minutes. If you have the severed part and hold it to the stump, the limb will knit to the stump immediately.