Homebrew
Alchemic Bleed
1-level Transmutation
Casting Time: 1 reaction (which you take when you are hit by a melee attack that deals piercing or slashing damage)
Range/Area: Self
Components: Verbal, Somatic, Material
Materials: a poison, potion, or other alchemical substance worth at least 1 sp, which the spell consumes
Duration: Instantaneous
Attack/Save: CON save
You fuse the blood exiting your wound with the alchemical substance used in the spell's casting, creating a harmful vapor that seeks out the source of harm. The attacker must make a Constitution saving throw.
On a failed save, the creature comes under the effects of the consumable used in the spell's casting as if they had consumed or otherwise been affected by it.
Available for: Druid, Ranger, Wizard