Doctor Blythe

Doctor Blythe is a giant doll conjured by the user, used only to surgically treat damaged areas of the body. It is equipped with countless medical tools that can be used to provide first aid as well as perform major surgeries. A mortal wound to the stomach can be treated in less than one hour, and destroyed corpses can be reconstructed to be later manipulated. It can reattach limbs but not regrow them. Doctor Blythe cannot move from the position which it is initially summoned and is connected to the user's back, limiting their radius of movement to 20 feet while the ability is active. 

When Doctor Blythe is used, the user can heal themselves or someone within a 10 ft range of where Doctor Blythe Is summoned for 8d8 of health as a bonus action on their turn. However for everyone but the user, Doctor Blythe must a ranged spell attack roll using the users stats. If the attack misses Doctor Blythe can only 6d4 of health.

Doctor Blythe exist until the user dispells it as an action or until the doll runs out of health. It's health is 6d4 plus the user's spell casting modifier. Doctor Blythe counts as a large creature, uses its caster's armour class as it's own.

At Higher Levels: At the 7th level and above, Doctor Blythe's healing get 1d8(or 1d4 if attack rolled failed) added for every level above 6th that it is casted at.