Start with UA first, so your not being smacked while casting. Instead of SB use Drain Life to heal from Tapping. Have your Imp out and DP him constantly. Use a shard manager Mod/macro with Imp Drain Soul and hit the mob with it when he is about to die. That way you don't clog your bags with shards you get 7% of your mana back. Still you will have to stop and drink from time to time but, not nearly as much as a mage.
