-Rares will despawn if you group up with players ON THE SAME LAYER
https://www.twitch.tv/cdewx/clip/SpicyCoyTurtleBrokeBack?
https://www.twitch.tv/asmongold/clip/SassyScaryCaribouTheTarFu?
https://www.youtube.com/watch?time_continue=63&v=8lH_1kUAA0g
-Enemy players and Players from your own faction will phase in and out ruining pvp. You can also use this to your advantage to escape pvp situations.
https://clips.twitch.tv/MoistSoftGullWholeWheat
https://www.youtube.com/watch?v=3fncH0hDFFo&feature=youtu.be
https://www.youtube.com/watch?v=LItduEtb8ds&feature=youtu.be