Persistent DamageCondition

Persistent damage comes from effects like acid, being on fire, or many other situations. It appears as "X persistent type damage," where "X" is the amount of damage dealt and "type" is the damage type. Like normal damage, it can be doubled or halved based on the results of an attack roll or saving throw. Instead of taking persistent damage immediately, you take it at the end of each of your turns as long as you have the condition, rolling any damage dice anew each time. After you take persistent damage, roll a DC 15 flat check to see if you recover from the persistent damage. If you succeed, the condition ends.