Bitterblood Elixir

Bitterblood elixir is a pale pink color, like that of water tinted by a few drops of blood. After you drink this elixir, your blood becomes dangerous for other creatures to consume. For the next hour, whenever a creature drinks your blood, the elixir changes your blood into a foul-tasting acid as it mixes with the drinker's saliva. You're unharmed by this transformation, but the blood drinker must attempt a DC 20 Fortitude save.

Critical Success The creature is unaffected.

Success The creature takes 2d6 acid damage and is Sickened 1.

Failure The creature takes 4d6 acid damage and is Sickened 2.

Critical Failure The creature takes 4d6 acid plus 2d6 persistent acid damage, and is Sickened 3.