Serendipity
Explorer
I dig the mechanic, but it doesn't really sing "Ranger!" to me. (Then again, I tend to shift around how favored enemy works depending on the campaign setting.) It doesn't speak of any other class either though (well, save maybe assassin).
Perhaps a variation on this could work in which it keys off of something other than monsters? A terrain based variation? Which speaks more of what a ranger is (to me) than what it's good at killing.
Perhaps a variation on this could work in which it keys off of something other than monsters? A terrain based variation? Which speaks more of what a ranger is (to me) than what it's good at killing.