Leprechauns also have an affinity for the wilderness, but look more like dwarves and speak with annoying Irish accents. What unites these three races is their general desire to avoid people. That don't necessarily dislike humans, they just see us as trouble and want to stay away from us. Dwarves just because we are a nuisance, Elves for the same reason that girls abhor obsessed lovers and Leprechauns because humans are always trying to steal their pots of gold. They do have all sorts of magic powers so its best not to screw with them.
Leprechauns are probably the most powerful, but tend to work alone.
Elves and Dwarves are easy prey individually - but they are never alone, and they will come after kidnapped companions. What their thoughts are on helping humans who make a habit of preying on their fellow man aren't clear. Fixing a broken hairdryer, keeping batteries from running down, things like that. If anyone finds a way to capture a few of these creatures and force them to help out in an evil lab, we'd love it if you could share your techniques. Again, these are three different looking species that share a common regard for humanity.