After you have completed Utgarde Keep, The Nexus, and Azjol-Nerub, the only other World dungeon left in Northrend is Drak’Tharon Keep.
It’s located in the Grizzly Hills and has everything from Humanoids to the Undead trying to wipe you out.
However, deep within the dungeon you will find the last four bosses Trollgore, Novos the Summoner, King Dred, and The Prophet Tharon’ja.
This is the longest of all the world dungeons and will easily take an hour to around two hours for players to complete. Granted, this assessment is based on each of your party members ranging around levels 74-76. Obviously if you have 5 level 80 players then the time length will be substantially shortened. Whatever the case may be, we’re going to give you a few tips on how to beat each one of the bosses.
Trollgore

If there is a boss that puts out an extreme amount of damage to all members, it has to be Trollgore. He has a good amount of AOE abilities that will not only wipe out the weak trolls that come flying in, but also your party members. A fantastic healer will have to be invited on this trip and be able to keep the tanks alive as they are consumed with various AOEs.
The best way to beat him is if you all spread out, but leave the healer in an area where he or she can heal any party member with the click of a mouse. Also, anyone who has the ability to stun Trollgore or knock him back should do so whenever possible. If you keep this boss off balance, then you should be able to withstand his attacks in Drak’Tharon Keep.
Novos the Summoner

Before you all just run up to fight Novos the Summoner, you should know about the Arcane Field first. This makes casters and ranged shooters obsolete as it protects him from your fire. If a tank or anyone else tries to enter the Arcane Field you will sustain a substantial amount of damage. Instead, focus on the large group of aiders that fly down the stairs to Novos’s aid.
Then of course you will encounter Humanoids and Crystal Handlers that turn this battle into a War. If you continue to simply fight these foes you will wind up running out of supplies because it will go on forever. The objective here is to look for the Handlers and kill them for Novos the Summoner to drop his shield. Once you’ve accomplished this, the fight against the second boss is rather easy.
King Dred

Who ever heard of a Dinosaur looking Devilsaur being able to talk? Well, keep an eye on your chat box if you don’t have the bubbles set up and when you see him speak, get ready for the action. He will come at you with all kinds of abilities like Mangling Slash, Grievous Bite, and Piercing Slash which will cause a large amount of damage. Plus the Bleed effect helps to deal damage when members of your party are infected and getting a healed.
While this battle is part of Drak’Tharon Keep, it has nothing to do with any of your quests except getting in the way. If you are on time constraints and don’t want the drops, then just bypass King Dred by moving around his pen. Then again, if you need the XP you should go for it, but keep an eye out for other nearby enemies who are waiting to join the fight.
The Prophet Tharon’ja

Probably one of the most interesting creatures in the game, the Prophet Tharon’ja will frequently turn your group into Undead skeletons. The first time through it may be a little confusing if you’re used to your own spells and abilities, but if you have to go back it’s easy. Just focus on using the Touch of Life for retrieving health or Slaying Strike which will be your big damage ability.
The Prophet will use a Poison Cloud on your entire group while in an Undead transformation. Your objective here is to utilize the Touch of Life while taking damage away with the Slaying Strike. What it will all come down to is if your tank can hold the aggro so the rest of the team can continue to hit Prophet Tharon’ja. So make sure you have a good amount of DPS between the 5 of you and he will succumb to your fury.
Last World Dungeon
To be honest we had a harder time in Drak’Tharon Keep with Novos the Summoner than taking on Prophet Tharon’ja. If you pay close attention to each of these bosses and figure out their “go-to” moves, you will be able to combat everything and become the World Dungeon Dominator (this is not a tag). Plus, you’ll get some fantastic drops as well!
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