MoP Instant kill friendly players.

[Atselmya]

As a monk, if a hostile enemy mind controls a friendly player you can use your instant kill ability to do damage equal to your max HP, this is normally enough to kill them. I have not tested this with mind control on a hostile player but chances are it might work the same.

[Ziggeh]

Whereas killing a player with that thing is definitely not intended, the given requirement for it to work (having someone to MC a friendly player) kind of obliterate the usefulness of it. It's rather a bug than exploit, imo.

[DKsoloer]

this ability isnt intended to be used on players in any way so it totally is an exploit
ut you are right that its kinda useless except if you have a buddy with different faction priest and want to kill some of your friends but there are better ways to do so