The Aberrant Blood Serum is a volatile concoction of synthetic blood, necrotic tissue extracts, and alchemical stabilizers—crafted by the necromantic artificer known as Skallbrand. Famed (and feared) for his twisted experiments in fusing life with undeath, Skallbrand developed the serum during his early work on flesh resilience and plague immunity.
The serum pulses with an unnatural green hue, thick and dark like coagulated ichor. Though it offers extraordinary resilience to those who inject it, many who’ve tried it report nightmares, pale skin, or a lingering taste of ash. Skallbrand’s early notes suggest he never considered the side effects a flaw—only evidence of progress.
Worth 750 gp, though many collectors, black market dealers, and arcane surgeons would pay double in certain circles.
Properties:
As an action, you can inject the Aberrant Blood Serum into yourself or another creature. Upon doing so:
- The target gains a +2 bonus to Constitution (up to a max of 22) for 24 hours.
- The target also gains resistance to poison damage or necrotic damage (choose upon injection) for the duration.
- After the 24 hours end, the user must succeed on a DC 13 Constitution saving throw or suffer one level of exhaustion as their body violently purges the corrupted elements.