Slave Pens The first 5 - man wing within the Coilfang Reservoir . The instance is harder than both the Blood Furnace and the Hellfire Ramparts , but the loot drops are of much greater quality . In Heroic Mode , the Slave Pens holds Skar ' this the Heretic prisoner . He begins and ends the quest which allows players to enter the Serpentshrine Cavern . The quest involves killing Gruul the Dragonkiller and Nightbane in Karazhan . Note : As of Patch 2 . 1 . 2 , Serpentshrine Cavern no longer has a required attunement to enter . The attunement quest chain remains in - game , and can be completed if desired . Starting with 2008 , the Midsummer Fire Festival will feature a new boss in Slave Pens called Lord Ahune . Slave pens will give Cenarion Expedition Reputation through Friendly , and through Exalted on Heroic . An average Heroic run will give roughly 1850 rep . Dungeon Denizens . Bosses . Normal mode bosses are all level 64 Elites , while Heroic Mode bosses are all level 72 Elites . Trash Mobs . Normal mode melee mobs hit between ~ 200 – 300 normal hits . Heroic trash mobs are bumped up in power . Two particularly tricky pulls can be found after Rokmar - these involve large groups with a mind controlling soothsayer and intimidating shouting Champions . At least in Heroic , the second group of these can be skipped if you are willing to fight the next patrol in the tunnel . The first group can also be skipped , although if you are using traps and fear as a form of Crowd Control it is probably better to kill them so you have room for the next group . Skipping Pulls . Slave Pens is notable for allowing perhaps more " skipping " of trash mobs through careful movement than any other Outland instance . Two of the most impressive skips are described below : 1 . In the second room , it is possible to skip five pulls . Pull the pat of three naga as it goes by , and then the slavehandler beyond . Everything else in the room can be skipped . Move to where the slavehandler group was , and then hug left as you move forward . Note the two blue lanterns ahead and to the right . Visualize a straight line running from one lantern to the other , but shifted two yards to the right ( start two yards to the right of the first lantern and finish two yards to the right of the end lantern . ) Wait for the pat ahead to pass from right to left . Then run along the line you visualized and hook around the back of the room to the tunnel entrance . 2 . You can skip seven of the eight pulls between the first and second boss . After pulling the first boss , skip the group at the bottom of the ramp by running under the ramp and hopping up onto it from the back . Skip the group at the top of the ramp by waiting for it to pass and then simply running up and around on the other side ( either side is equally valid , but just make sure everyone moves together and on the same side ) . Fight the pat of 2 naga on the hanging wooden bridge . At the end of the hanging bridge , skip the two defenders ( and all the other pulls between here and the second boss ) by waiting for them to turn their backs , and then carefully moving behind them and jumping off the bridge PARALLEL to the direction of the bridge . This is very easy to do by hugging one of the walls ( either one , depending on which side you took ) , running parallel to the bridge , and hopping forward over the low wall . Be sure not to strafe or do anything which causes you to move even slightly perpendicular to the bridge . You should hit the lower bridge . From here , you can see the second boss . Move out along the left - hand ledge , the side where the boss is . There is a line on the ground about three yards from the end of the ledge . Stand on that line , face 45 degrees out , and simply walk forward off the ledge . You ' ll hit another ledge below . Move along that ledge to the ground , and you are behind the second boss , ready to fight him ! If anyone misses either jump , as long as a character with a resurrection ability makes it , the people who miss can simply drown themselves and be resurrected up onto the lowest ledge . Other skips are possible ; these are just the biggest ones . In all , it is entirely possible to get through the entire instance with only 15 trash pulls . This makes Slave Pens one of the most efficient runs for an experienced group trying to farm . Loot . See Slave Pens loot . Videos . < br >