So im wondering, have 3 on my paladin wich i only do pvp with. and 2 on my priest wich i only do pve with and yes i have the 2k achie in m+ where u get the kaja´mite. But im wondering how did i get the 3rd on my paladin?
You get an extra Essence of Kaja´mite for the achievement
The achievement is accountwide so I guess that your paladin got it first and your priest can’t get the achievement because you have it all ready.