Circle of Life Passive When an enemy dies within 20 yards, there is a 15% chance that a Zombie Dog will automatically emerge. The range of this effect is increased by your health globe and gold pickup radius. If Zombie Dogs have a rune, summoned Dogs will benefit from it.
"The heads hanging in the village had their eyes sewn shut with thick thread. Whatever wicked magic held the frightful hound-beasts together was considerably stronger." —Abner Lockridge
Circle of Life is a Witch Doctor passive skill, unlocked at level 10.