I've started to see a pattern in the traits and abilities they use and they (from the limited info I have available) seem to be related to an intricate pattern of previously obtained Virtue Weapons (notice which jobs can use them). However, around the time i come to Jailer of Prudence the info about it's traits and abilities are lacking altogether. So, what can you tell me about JoPs abilities? Does it have any abilities that would remind you of BRD or SMN? Does it perhaps resist silence and slow?
My main theory is that using a Virtue Weapon that corresponds with the Jailers abilities and traits might disallow the use of these abilities and/or dispel any traits. I realize that this has been brought up several times before and although I found this pattern and came up with the idea myself prior to reading other peoples similar theories it's up to you whether or not you want to believe that (and I quite frankly don't give a shit either). If you have any objections to my theory please prove me wrong instead of coming up with half-educated anecdotal evidence based on mobs from a totally different part of Vana'Diel.
Take Jailer of Fortitude as an example this guy is obviously a PLD type mob, is it possible to sleep him? Or will he just resist any attempt on doing so? Sort of like the PLD trait Resist Sleep.
Have you tried fighting him with a Justice Sword and Virtue Stone equipped?
My theory here is that if a PLD using a Justice Sword is fighting him he might refrain from using Invincible and his (as of yet unconfirmed) Resist Sleep will be dispelled.
I believe the same thing might hold true with Jailer of Temperances Meikyo Shisui and (possible and also unconfirmed) Resist Blind with a SAM using Love Halberd.
Considering Jailer of Hopes reported behavior I'm inclined to believe this NM is a RDM/THF/WAR type mob (Mighty Strikes, fast melee attacks and very fast casting along with en- and spikespells), does he resist Petrify (RDM), Gravity (THF) and Virus (WAR) (I'm not even sure if this debuff is available atm)?
How about trying those debuffs and check if they are resisted and if they are try them again with a character of the corresponding jobs wielding his/her corresponding Virtue Weapon.
I might be off on the THF part seeing as his fast melee hits can be a result of Double Attack.
It should be pretty clear what I'm getting at by now, but in case someone needs it spelled out for them my point is that I believe these NMs were designed to be taken down with diverse groups. And the "required" diversity of jobs gets higher at higher tiers. JoL and AV are the ones that really requires a wide array of jobs to take down easily if my theory is proven correct.
All in all, what I would like someone to do is to try debuffs on the different NMs and see what sticks and what's resisted and then try those same debuffs with the corresponding job/weapon combo. And also on the next LoJ fight that any of you might take part in try to equip a WHM with a Prudence Rod and Virtue Stone and see if that might stop or reduce the regen (try both passive and offensive use).
If this works it might be the key to finally kill AV without a zonewide wipe.