Mechanar The Mechanar is the first wing of the Tempest Keep instance . It serves as a base for Pathaleon the Calculator and also generates manacells , which contain an incredible amount of power . It once belonged to the Naaru . The area is filled with Mo ' arg s as well as Bloodwarder and Sunseeker blood elves . This is the purple crystal building south of the main palace . At level 80 , the instance is easily soloable on normal mode , while heroic mode is a challenge and requires high - level gear for most classes . One full run with all mobs cleared yields about 1620 reputation with the Sha ' tar . Background . Among the satellites of Tempest Keep , the Mechanar has been chosen by Kael ' Thas to be a factory to create large amounts of power . Mechano - Lord Capacitus appears to be the one creating it using the naaru - technology found in Tempest Keep , and the power is stored in manacells which piles up into walls and heaps inside the satellite . There they are guarded and handled by blood elves directly under the authority of Pathaleon the Calculator , Kael ' Thas ' prime deviser . The elves are also aided by a large number of demons serving the Burning Legion , Kael ' Thas ' new ally . The large amount of manacells are smuggled by ethereal s to the Sunwell where Kael ' Thas plans to use them to power up the summoning of Kil ' Jaeden . Some of the manacells are found at the ethereal - camp Bash ' ir Landing in Blade ' s Edge Mountains and even more of them are seen in the Magisters ' Terrace close to the sunwell . The Mechanar is the part of Tempest Keep most controlled by Kael ' Thas and his blood elves ( the Botanica and Arcatraz are suffering various problems ) , next after The Eye . Layout . The Mechanar consists of two levels joined by an elevator . The first level has two named elites and one boss . Both named elites must be killed to open the elevator . You must also kill both Gatewatchers to open the Cache of the Legion . The first optional boss ( Mechano - Lord Capacitus ) has a decent loot table of his own . On Heroic mode , these first three bosses ( prior to Patch 2 . 3 ) are known as the Three Free Badges , as the Gatekeepers remain virtually unchanged from regular mode and Mechano - Lord Capacitus becomes a ridiculously easy fight with proper positioning . Moderately geared groups can fight their way through the first floor in less than an hour , even with a wipe or need to retreat . As of Patch 2 . 3 the Gatekeepers no longer drop a each , instead one is found in the Cache of the Legion . Both the second optional boss and the end boss of the instance are up the elevator . Dungeon denizens . Mini - bosses . Gatewatcher Gyro - Kill and Gatewatcher Iron - Hand are mini - bosses . Each drops a portion of a key which is used to open the Cache of the Legion just before the elevator . Issues and bugs . There are currently a number of issues in this instance . They are listed here along with workarounds . These are issues acknowledged in Blizzard posts that are planned to be resolved . Elevator is not visible . Problem : This client - side issue causes some players to not be able to see the elevator . This occurs on a per - instance basis . Workaround : If you encounter this problem , the only ways around it are to : The upper floor is locked . Problem : Under certain circumstances , the elevator gateway remains closed after the group wipes . This issue is still not fixed as of 7 March , 2007 in patch 2 . 0 . 10 . Workaround : The best ways to deal with this are : " Note : " GM stated that devs have asked that players not be ported to the other side of the gate after this occurs , as this may cause other problems . Resetting Pathaleon Breaks the Instance . Problem : If attempting to reset the final boss by running towards the elevator , sometimes he may bug , keeping the remainder of the instance inaccessible . When Pathaleon mind - controls the players , they will release and fall under the map . When this happens , the client may be disconnected and will have difficulty getting back on . After this , Pathaleon and his adds will be scattered between several rooms in the back half of the instance , rendering the instance unplayable . Currently ( Patch 2 . 3 . 3 ) there is no known workaround , a GM must be paged to reset the mobs and , occasionally , the players as well . Free chest - runs for Rogues and Druids . The Mechanar , among other instances , was once famous for allowing Rogues ( and some druids ) the opportunity to solo their way to several chest s inside the instance , boosting the clever Rogues ' economy quite a bit as they didn ' t need to share the chests with anyone . As a result , chests within instances were removed in patch 2 . 2 . 0 . Loot . See Mechanar loot .