Burning Damage
Some like it hot, however most folks don't enjoy burning to death. All kinds of things can catch a creature on fire, for instance torches, chemicals, doctored-up weapons, or magic spells. When your body, hair, clothes, or equipment catch fire, you gain the burning condition. So long as a creature remains aflame, it takes 8 damage each round, and no skill check can prevent or avoid this damage.
Next comes the business of extinguishing oneself. Creatures who are partially aflame can extinguish the fire for 3 AP by pouring water over the affected area or covering it with heavy cloth and patting it out. A creature who is completely engulfed in fire must spend 6 AP to put out the flames by dropping to the ground and rolling around or leaping into a body of water.