The sawbones
You have trained yourself in the science of medicine. The Sawbones learns every inch of physical anatomy, and uses it to heal their allies and hit their enemies where it hurts most. Back-alley doctors, battlefield medics, mad scientists, and other practitioners of all things biological can be Sawbones of one form or another. You heal your allies, harvest parts from dead, monsters, and silence your enemies with deadly precision.
Back-alley medicine
when you take this archetype at 3rd level, you gain proficiency in the Medicine skill. If you are already proficient in Medicine, you can choose another skill to become proficient in. Xou may use your intelligence modifier instrad of your wisdom modifier for medicine checks. You can use the bonus action granted by your Cunning Action to administer a potion to creature within 5 feet of you or to make a medicine check to stabilize a dying creature.
Surgons's toolkit
When you take this archetype at 3rd level, you have accumulated a set of tools for combat medicine. While these tolls are on your person, you can use an ation to tend to tje wounds of a creature within 5 feet of you. That creature can spend a number of its Hit Dice up to your intelligence modifier. For each Hit Die spent this way, roll the die and add the creature's constitution modifier to it. The creature regains hit points e