Well, the basic set of imbuements is: 2 mana, 2 life and 1 crit (powerful) if you have 2 handed weapon, if not, you should choose between 2 life or 2 mana, depending on your hunt, what you think is necessary. You can try Mini Rosha or Glooth Bandits for a good profit and exp.
Use yoru regular set to gain physical protection and skills boost. You can increase this using Ring of Red Plasma or Club Ring, also with Collar of Red Plasma and Enchanted Werewolf amulet.
If you hunt creatures that deal elemental damage, you should look for imbuement protection to the damage.