Tottle

Not a great all-around pet, but definitely worth considering if the opponent has elementals.

It's not a "free gift." It's part of what you're paying for with the "collector's edition." Good lord.

Shell Armor and Shell Rush work excellently with a Healing Stream pet. Once the heavy mitigation buff drops, Rush out for backline healing to top Tottle off while Shell Armor comes off cooldown.

Be warned, Shell Rush will bug out and close your current pet battle if you can't swap out with a backline pet whether it's because Tottle is rooted or because the backline is dead.

Shell Rush will only swap Tottle if it damages at least one enemy pet.

You need the Pocket Pet Portal http://www.wowhead.com/item=139003/pocket-pet-portal and you can get up to 1500 pets

He does have an interactive.  /roar makes him throw his head back and bellow.  I think it's the same motions as the yawn idle, but faster.

Be careful if you have over 1000 pets you will not get him.

I'm hoping they come up with something that makes it worth the extra $$ to get this pet, from the initial abilities listed it doesn't look that great but there's 2 empty slots still.