Stamina or Intellect or Spell DMG Follow

This has been mentioned before : While leveling, maxing +shadow damage provide speed and maxing +sta provide safety. At your level, you should start looking for the Shadoweave set, it's very good. I leveled with +shadow damage items at the cost of having low life, but i had no downtime.With my imp as mana battery, I don't need much health to grind efficiently.