Head on down to the first level of Shame and attack multiple earth elementals at a time. Use alot of Momentum Strikes and you should gain faster than just sitting there Lightning Striking a horse. Use a low damage weapon (get some store bought ones, they are cheap and weak), so you don't slaughter the elementals too fast. Damage Increase is not your friend while doing this, so don't have any DI% items or use Enemy of One. As a bonus, you might get a Virtue Artifact drop. This will work if you are not using archery. If you are using archery, soul stone it off and get 80-100 of a melee skill and you should be set. Confidence should keep any scorpion poisons in check.
Stayin Alive,
BG