If and when a hero has completed ten Chapters (whether in one adventure or between more than one) the following occurs:
+1 Proficiency Adjustment (PA) on one Core Ability
+1 Proficiency Adjustment (PA) on another Core Ability, or the same one
+1 PA on one War Ability
+1 PA on one Skill
No PA may ever exceed +7 on a single trait.
The player should determine what exactly has made the hero permanently more proficient: perhaps heavy training, a new weapon, a new tool, a new power, etc.