Hati and I are now back together! However, he has started to stealth automatically, even though I have deactivated Spirit Walk. It's incredibly annoying, because I don't want him in stealth! Also, the item buff that grants you the ability to ride Hati like a mount disappears if you go into combat, making it pretty useless if you wanted to use it in the field... Regardless of this, I'm very happy to have my good boi back.
As a note: on live you can rename Hati if you just right click on the portrait. Or at least, I was able to when I tried it with one of my tamed Hati "aspects".
I’m happy to have Hati back, soo I’m hiding him in the stables soo blizz don’t take him away
You can transmog any weapon into the legion artefact as long as you are in the correct spec. Click your first weapon slotted and transmog tab top right change to legion > select skull - wa-la