Pet: Dark Naiad
Attack Duskbeam
SpellLesser Fade Wounds,
Fade Wounds,
Greater Fade Wounds
Power Arboreal Rejuvenation
Emanation Regeneration:
+200% Health Regeneration Rate
Availability Available from pet shops starting in Act 2

Note: The dark naiad is just like the light naiad, except it uses a lesser healing spell and it doesn't receive any natural resistances.