Caustic Damage
"You sir, have offended my honor! I challenge you to a dueeeeEEEEEEAAAAAAA!"
——Pripigan Pelstein, threatening an alchemist after a short business dispute
Caustic damage can be dealt by the right chemical mixture, from the stomach acid of a creature, a magically enhanced source or even the earth itself. In addition to its versatility, a caustic source is also hard to resist, so most creatures fear its touch.