Hey, im not sure if this was posted here before - i didnt find anything from searching.
First, you need one Person who have both OLD Zul Gurub Weapons :
Arlokk's Grasp - Item - World of Warcraft (Arlokk´s Grasp)
and
Arlokk's Claws - Item - World of Warcraft (Arlokk´s Claws)
You need a second person too, which copy the Visual with an Potion of Illusion (Potion of Illusion - Item - World of Warcraft).
Player with the weapons goes to trainings dolls in SW/OG or anywhere and hits till the Weapons proccs. Second Player targets him while he got the transformation and use an Potion of Illusion. Player with Weapons use a potion too on the transformed Player B which had allready use it. You can hold this Transformation up know as long as you have potions of illusions.
Attachment 9989
Have Fun testing.