if he is a pet, then his health should say NAN or it shouldn't show it's health bar at all. Like the cougar or raven
As you can see here, there is me as Senick and cougar and me as Nalfar and raven in the second screenshot. But when you look at the pets status, it says NAN or it doesn't show anything. For kith, however, it shows that his health is 10. Thus he really isn't like a pet in another way. He is type "hero" and if he is a pet, then the pet I am already using shouldn't be right there, because I could use only one pet at a time.