Damage (Rules) (Player Core)

Attacks, spells, and other dangers deal damage . The amount is typically determined by a Damage roll, which can use a variety of sizes and numbers of dice. Damage reduces the Hit Points (HP) that measure a creature's overall health or an object's durability. A creature might have immunity to damage or effects of certain kinds, a resistance that reduces the damage it takes, or a weakness that increases damage it takes (page 400). These are typically keyed to Damage types such as slashing damage or fire damage. Related: Persistent damage condition