Dagger Rogue me at around the 70's was tackling Hill Winds and Siromas. Earth and Wind Damascuses are great! You can probably start Byalan 5 in the later 70's for some wicked easy exp if you got decent flee and wind dama. Just take some healing items as you're going to get hit from time to time. Make sure to hide well from Strouf's lightning bolts too as they kind of hurt at that low a level. Backstab trick works too on killing the mermen pretty quick (you walk behind them and hit with back stab and repeat).