drop rate is terrible for anything useful. 5% or less for the shield (useful), 10 to 15% for the grimoire. (outdated at this point) and you have to clear most to all of the island before it pops. you'll likely be here awhile. ;) enjoy!
in my experience, the 3 day respawn timer mentioned below seems about right. in my course of over 50 island clears, i got the apprentice maybe 5 times, and each time i believe i had miscounted my days.
Challenging fight, but I won. I used the usual ranger bad boy stuff. I was low on health at the end. Good luck. Dropped a glyphed rune and a shiny metallic splinter.
Was clearing to get bst 2.0 epic mob. Had a lvl 70 group with WAR, CLR, DRU, BST, RNG & ENC. We killed a few mobs in the entrance/center area, and after killing Constable Alranderisan, this mob "Chamberlain Escalardian" spawned as a level 70 mob. It had a good amount of HP, also did an AoE root (the root icon looked like a guitar) no idea about the AoE root name.
Our level 70 enchanter had problems slowing it, made it after a few resists, and couln't mezz it.
Was really mean, we didint expect an encounter like that :\ killed our healers and only the ranged survived~
just an observation from camping this... It seems killing mobs at zone in (or possibly specific) will spawn the constables, there are 3, and when the last constable is killed either the chamberlain or a chamberlain's apprentice will spawn near the tunnel.
I am not sure if there is a set respawn or not but i am under the impression that it may be 3 days or so from what a guild mate has told me.
Flurries constantly, rampages about every other round. Hits for about 1.7k max. The only thing that makes this encounter difficult for single group is the constant blurring this mob does and cleric getting summoned then killed.
With beastlord tanking we were doing fine until the 3rd blur that finally did cleric in. What makes the mob itself not so bad is that it missed just over 50% of the time and normal hit was about 800.
This is a raid encounter. Hits like a Mac Truck. Monk got tagged for over 1700 points in one hit. Never noticed the AE due to its range. Raid was backed off of mob and avoided it.
Would not recommend a single group attempt this mob.