A large predatory mammal that can run or fight on two legs, not requiring sleep these demons were brought onto the world to create killers, in the world of werewolves these could be considered alpha males.
This oily, crimson liquid is rare to find even in the more complete apothecary’s collections. It can be easily applied to any blade or arrowhead as it was designed to do so, however if consumed it will have no ill effects on the drinker.
What if potions and tonics had negative side effects? Potions of increased strength cause violent tempers, or damage joints. What if potions of dexterity caused tremors, or palsy?
What if they were addictive, and had withdrawal symptoms?
Could someone make a bad batch? No one use the brown strength potion!