Veeshan's Peak 2nd Wing
Once you have defeated Nexona and Druushk you will want to head to the 2nd wing of Veeshan's Peak. Luckily most creatures and bosses in this raid nightmare get easier. The only harder boss than Nexona and Druushk could possibly be Silverwing in the 3rd wing. However if the raid was coordinated enough to take down both Druushk and Nexona it can certainly take down Silverwing.
Heading back the way you came you will head towards the newly opened hallway which is guarded by 3 groups of 2 level 86x4 droags. These droags can be individually pulled, but the first group near the ramp will be the trickiest to pull. They have moderate abilities, but will do alot of damage to the MT so it is best to have an offtank take one of them. Continuing down the hallway you will meet your first boss of the second wing Taskmaster Nichok. Before attacking this creature you will want to talk to the Iksar off to your left Mender Nixvisss. He will give you a quest to kill the creatures of the second wing and as a reward will mend your armor for you. This quest only needs to be completed once and when done you have permanent access to him.
Taskmaster Nichok isn't a difficult fight, but is a little more difficult than Kluzen the protector. Like Elder Ekeron during the fight he will call adds to start attacking your party. The Taskmaster will constantly stay on his rock in the Lava pool and all melee dps will need to go along with the MT to attack him. You will have your Caster Classes and Healer classes standing as far back as possible to avoid the Taskmaster's AoE attack. Also during the fight at a certain % of his health he will charm a person and send them to work at a rock pile taking them out of the fight. Other than the adds, AoE attack, and charm The Taskmaster is relatively easy and drops the required final update for the Coercer Mythical.
With the Taskmaster dead you will head up the ramp towards the elevator taking care of trash along the way. As you go up the elevator to the second wing you will now have to deal with mobs that have an AoE Knockback. If the raid force isn't positioned correctly they will get knocked into the lava and will have to find their way back to the platform. Once all of the adds are dealt with you will face Milyex Vioren and his little gnomish assistant.
Throughout the fight Milyex's assistant will fix broken towers which must be destroyed in order to damage Milyex himself. You can kill the gnomish assistant which will slow down the repairing of the broken towers, but it will not stop them completely. To win the fight it is best to have a group at each tower and the maintank pulling Milyex to the back rock wall to help negate the AoE Knockback. However you will need to pull him as close to the tower as possible so the group with the MT in it can take it down. You will need a significant amount of dps to destroy each tower. If the towers arn't destroyed and all four of them stay up long enough a huge AoE knockback will occur knocking several people into the lava. At this point Milyex will kill off your MT rather quickly causing the raid to wipe.
After you take care of Milyex you will head up the scalable wall towards your next enounter Xygoz. Xygoz is very interesting because during the fight he will summon statues that must be destroyed in order to proceed. To start the battle your MT will wakeup Xygoz and you will get everyone under him to avoid his AoE. At 81-82% everyone will have to move out from under him and at 79-80% Xygoz will fall asleep. When he falls asleep several statues of either the dragons in Veeshan's peak or your raid party will spawn. If the Veeshan's peak dragons spawn kill all, but Trakanon and have your party get ready to move back under Xygoz's Haunches when the Trakanon statue dies. However if the statues of your raid party members spawn have all of the raid members pick up their statues except the MT. Have everyone get ready near Xygoz's belly then have the MT pickup his/her statue and the fight will continue.
Luckily for the Xygoz fight this only happens twice near 80-81% and again at 40-42%. When those times pass you can simply burn down Xygoz. However during the fight Xygoz will cast nasty AoEs that have stun, stifle and fear effects. Standing under his Haunches helps out during the fight and can help to avoid some of the physical AoEs. You must get out from under him around 82% and 42% so that when he comes down the raid party isn't instantly crushed.
Your next stop will be Ashenclaw who is purched up on a ledge near some rather nasty bees. The best spot to pull Ashenclaw is into the right corner *or if you want left corner* of the area that exits out into Ashenclaw's room. During the fight Ashenclaw will randomly call some heroic adds to his side and beyond that he has a nasty AoE ability that will knock people back. However once you defeat ashenclaw you will automatically face The Cinder Wasp Queen (AKA EmberQueen). She will also call on adds to assist during the battle, but has no special abilities beyond that. Ashenclaw is the final requirement for the Berserker Update while the Cinder Queen is the requirement for the Warden epic. The Warden epic update MUST be used in Veeshan's Peak and if you exit out before using it you will loose it. The item in question is no-trade and is also No-Zone so be aware of this.
The last and final mob of this area is Hoshkar who present a rather interesting challenge. A rock circles around his lair and everyone in the raid excluding the main tank must stay on this rock. If you do not you will get hit with an AoE that places an impairment on you causing you to constantly knockback and knockback others around you. This impairment also does a significant amount of damage upfront and has a nasty DoT component to it as well. During the fight if someone revives from a death there is a good chance they could get the impairment on them so revive at your own risk.
As for the main tank he/she will constantly have to move Hoshkar around keeping in range of the healers and dps. Debuffing Hoshkar will be the first step to success because he can hit relatively hard if he isn't. Beyond the odd circumstances and AoE damage this fight should be slightly easier than Nexona. Having a MT that knows how to constantly move the mob and maintain aggro will be an essential key to defeating this dragon.