A defensive pet will attack any enemy that attacks it or attacks its master. This can be helpful for a hunter or a warlock character who is working solo, as the pet will immediately respond to any attack. It can be particularly useful if the opening attack from the mob stuns or otherwise incapacitates the character. It can sometimes be detrimental in an instance, where the pet may charge off in response to a ranged attack from a mob, possibly drawing adds into the fight.
- Note: A pet in defensive mode will NOT attack a mob simply for aggroing on its master. The mob must hit (or attempt to hit) its master before the pet will attack, unless it is ordered to attack.