You reach into your victim's very being with the cold touch of death. Pulling their very lifeforce from their body and forcing them to rise from the dead should they die to this spell's deadly touch. The target of this spell must succeed a Constitution saving throw causing them to fall to 0 hit points on a failure or take 5d12 Necrotic damage and 5d12 cold damage on a success. The caster is healed half the damage dealt by the necrotic damage and should the target of the spell die they will rise as an undead under the control of the caster. This undead uses the same stats as it had in life except for having half their maximum hit points and are now be considered Undead instead of whatever the creature was in life. If the creature is an Elemental, Construct, or already an Undead it will not rise if reduced to 0 hit points.

"There are many horrors that dwell in and beyond this world. I think it more then appropriate to prepare to slay and bend said beasts to one's own will. Even if it means being labeled as a monster, such a small price to pay in my book." -Zorah Qrea, Leader of the Cult of the Broken Chisel, while speaking to those who questioned his methods of self defense.

Effects of Failure.
Creature immediately falls to 0 hit points.
Effects of Success.
Creature takes 5d12 Necrotic damage and 5d12 Cold damage.
Passive Effect.
Caster is healed half the damage dealt by Necrotic damage.
If a creature is reduced to 0 hit points the will become an undead version of their former self with half their maximum hit points under your control. This lasts until the undead is killed or until you dismiss it. this does not work against Constructs, Elementals, or creatures that are already Undead.