Leprechauns are benevolent creatures most often associated with good luck. Because they can become invisible at will, they are rarely seen. Many people take the sighting of a leprechaun to be a harbinger of extremely good luck. Those who press their luck and decide it would be amusing to try to capture a leprechaun are usually in for a surprise, however, as leprechauns can play very nasty practical jokes on those who disturb them.
When the dwellers of the forests or other good beings are in danger, leprechauns have been known to side with the forces of good to defeat the evil threat. They are most likely to join the Halflings in battle, as these small folk share a liking for fun and humor. Together, they can make the best of grim situations and lighten the desperate nature of war.