The mechanic is the almost exactly same as Thok's fixate but with a few number tweaks and does not pick new targets. The mechanic is not random, and you can get it to go on the same person every single time.
Kargath will pick the furthest target within 40-50 yards or so, so you can't cheese the boss on one end a player alllllllllll the way on the other.
Last edited by Libertarian; 2015-01-28 at 01:46 AM.