Ice Giants, there are places to stand that the Giants can't fit into, but you have to get the Ice Warriors stuck behind the rock....you'll see what I mean if you try it. It is a good place because the drops are good, and it isn't overcrowded. Either way when you are training range fight unarmoured monsters....don't fight White Knights like the previous guy said, you will do less damage, though the White Knights are good for training mage. :)