how can people be in combat and disappear like this ???

[KinKys3xY]

https://www.youtube.com/watch?v=9odE...ature=youtu.be

[Anyone0]

They can leave Wintergrasp.

[skullatbash]

right click on PvP minimap icon > leave wintergrasp

If I remember correctly this behavior can be report to GM and that player may get a ban. ( I am not 100% sure tho)
You can report him by opening a ticket in-game ( you need to link that youtube vid ofc)

[thyonem]

I however do not believe that this is utilization of the "Leave Wintegrasp" option as it is only available during battle, which is not the case in the video. Additionally, when the character vanished, it remained within LoS as the target frame didn't disappear, which it would if the character was teleported to the usual location one would after leaving wintergasp. That indicates that the character was still within range even after vanishing. Notice that there is a hunter also attacking the player as well and that the hunter's arrows curve upwards once they disappear, retracing to the new location. I believe this is either lag induced or a flying.

[Sentenza]

Yes it is the utilization of the "Leave Wintergrasp" button. It can be used during a battle and can be used anytime you are in Wintergrasp. The reason the arrows are moving the way they do is because it puts you in Icecrown right behind Wintergrasp Keep. Try it for yourself if you don't believe me.

You cannot mount while in combat. So unless this Shaman has a way to get out of combat quickly and mount; that is not an option.