Elves are too expensive, try and make a cheap captain of gondor with horseman too lure the enemy away then give em the axes, just experiment a bit with the different powers to find whats cheapest, as the cheaper your hero is the more axe throwers you can make quickly!!
Take it easy
"Their presence here mocks us!"-Elrond
"Yep, their ugly!"-Gloin
"Bring me their leaders"-Mouth of Sauron (fat mouth)