Pal-a-din pal?

I was looking through my pals ad I found a pal that was called Pal-a-din. It was already level 4, and I can’t level it up. It’s description is This cute little creature raises its freakishly small hammer to pledge allegiance to your cause (and cause some serious pain to your opponent’s toes).  Can someone tell me what this is and how it got there?

@Workerbee There’s already topic regarding that pal that you can found here:

Well i think there should be some improvement that is under work i hope

Check it out some new cool ability of  Pal-a-din  :-