Necromantic Medicine

Over time you have Started to Study the Darker Sides of Healing Magic, Necromancy the Study and Magic of Death and Resurrection, but Not Complete Resurrection like a Clerics Necromancy in its Rawest Form is Typically Creating Soldiers like Skeleton or a Zombie by Creating a False form of Life in a Corpse.

You can now cast the Animate Dead, but the Time of the Spell is Changed from 1 Minute to Until Dispelled, When Casting this Spell you cant Cast it on just Anybody now can you, you have to make a "Perfect Specimen", The Way you Create your Specimen is while During a Short or Long Rest you can Combine the Raw Parts that you have Around you Such as Plant Matter as well as Flesh and Bone, The Physical Stats of the Creature (Strength, Dexterity and Constitution), Are Chosen by your DM, But it Shares the Same Mental Stats (Intelligence, Dexterity and Charisma) as you, But the Creature is Still Completely under your Control, You can Use this Creature like a Familiar as a way to Focus your Spells, if the Creature shares 3 or More Parts with a Creature that has Innate Spellcasting your Creation has Access to said Innate Spellcasting, or Something such as Swimming or Burrowing Speed, When Creating your Specimen you can choose to Activate a Personality also known as the Mind, Personality and Memories of the Creatures Skull you use During the Creation Process. 

You can only have Two of these "Perfect Specimens" Active at a Time, When Dispelling the Magic From your Creation it Falls Down and Suffers no Damage no matter the Height it Fell From, only while the Magic is Dispelled can you Add Parts or Trigger or Disable the Personality and Memories of the Skull. Your Specimens are not Disabled by Anti-Magic Fields, Dead Magic Zones, [Tooltip Not Found], You and You Alone can Activate or Disable your Specimens. Your Specimens are considered both Undead and a Construct, Your Specimen can Also Vary Between Small to Large Size.

Thanks to Studying how Nervous Systems, Muscles and Organs work on Creatures that Vary from Humanoids to Abberations you have Expertise in the Medicine Skill, and Have Advantage on Medicine Checks when Dealing with Humanoids and Beasts.