A minor mistake in the Pet Collecting Guide
Posted: December 6th, 2015, 2:31 am
Once I've noticed and reported a [url=http://warcraftpets.com/guides/pets/wow-pet-collecting/#families]wrong note about the pet dependencies[/url], but apparently it still stays here. 
(They are also vulnerable to the Flying ones and resistant to Undeads, by the way.)
The statement in italics is not true. Aquatic companions are stronger against Elementals and weaker against the Magic ones!In addition to providing a way to organize all 763 companions, these categories provide passive bonuses and different modifiers (both good and bad) when a pet enters into battle. For example, Aquatic companions are stronger against Magic but weaker against Elemental.
(They are also vulnerable to the Flying ones and resistant to Undeads, by the way.)