Spirit Binding

Injecting this Tonic grants you a modicum of control over necromantic power. When a creature within 60ft of you dies, you can use your reaction to raise it's body as an undead under your control. Humanoid creatures are raised as Ghouls, while non-humanoid creatures are raised as a similar CR undead at the DM's discretion. Only one undead created by this ability can be under your control at any time. Upon raising a corpse, if you already control an undead with this ability, the old one will die as the new one is brought to life by your power. This creature dies after one minute.