Hi,
I know this might not count as a real exploit but I think it's in a grey zone. Also I know this is only on the PTR and prob. won't go live, but have some fun while it lasts
Anyhow for the xploit, you go to the Argent Tournament Grounds and to the west of the arena you can see two banners on each side of a small road, there is an invisible tent if you walk on that road.
This is what you need to do, stand visible just outside the tent so that you can see the "world" and target an enemy in range, and walk a few steps back so that the world gets bugged and you can attack without getting seen.
This can also be used in many ways, I'll explain one more.
The second way to use this glitch is to have party with someone who target's the enemy and you already stand in the tent and therefor not visible in the world, you just do /assist and pew pew the hell out of him
The possibilites for ganking someone and they not getting how it's done is endless and people will get frustrated, believe me ^,^
And to all the flamers -
yes, this might be common sense to some but not for everyone.
Yes, this bug will for sure not go live.
Yes, tbh, It's quite useless I'd belive - but still fun.
And last but not least, it might not be an exploit but considering you're using a glitch in the in-game graphics I would call it an exploit.
Best Regards,
Ballongballe