You stumble across a Dwarven military camp. Dozens of Dwarves go about training. "Hey, are you looking to become a highly trained soldier? If so, then you must first prove yourself to us."
"Becoming a mighty warrior demands a high degree of skill and stamina. Return here once you have slaughtered 40 Skeletons."
"Did you manage to kill those Skeletons?"
"Excellent work! I can foresee you will become a mighty warrior! Here, take this as a reward for your hard work." (You gain Blade of Falgar and 600 xp.)