I don't personally have experience with this setup, however it sounds like it could work. The only problem I see is if you have ranged attackers on you at the same time. Then you lose the chance of fearing them. I do wish you the best of luck getting to 1800-1900 seeing how most people in that range are geared to all ends of the Earth.
I hope you have some good gear and remember mana tap and fear will be your best friends. So make sure you fear every time it is up and try to get both opponents in it. GOOD LUCK!!