So in 4.0.6 looks like they ****ed up the pet abilities.
1. As DK get your pet transformation up
2. make sure you have Claw on autocast
3. mash the shit out of gnaw button when your ghoul energy is BELOW 30 - you will be able to get 4-2-1 second stun cause of DR, sometimes you'll also be able to land 4th on another target before it will go on CD. Remember you can't use 2nd gnaw during first 2 seconds of 1st gnaw cause "more powerful ability is already active", so mash the button in the first ~1.5 sec of original stun, then wait till stun is over and mash again, you get 2nd stun, mash for about 0.7 sec, then wait till 2 sec stun is over and mash again to get final 1 sec stun
Haven't tested with other class pets but might work similiarilly.
Hope blizzard doesnt fix it fast since they are usually slow with bugs like that
---------- Post added at 09:16 AM ---------- Previous post was at 08:12 AM ----------
tested on players works all the time. also updated the post ot make it more readable