Thaddius ( original ) Somewhere deep inside the cursed necropolis Naxxramas . . . Your raid cleared out the last group of monsters , and the only thing left are the two gates at the very end of the room . While the rest of your group drinks , heals up , and resurrects any players who fell during the last skirmish , you carefully approach the sealed doors . Suddenly the mighty gates fly open . A vast laboratory filled with all kinds of strange machinery lies before you , electric discharges and lightning painting the walls with jagged shadows . In the center of the room , you behold a gigantic creature unlike anything you ( or any other player ) has ever seen before . Even though you know you should be trying to rally your raid you can ' t help but stare at this monstrosity . As your group falls into disarray and scatters , caught unaware and slaughtered one by one by the two gruesome wight s that descended from platforms higher up in the room , you wonder to yourself what kind of twisted nightmare spawned this monster . Thaddius is a boss in Naxxramas . The theme of this boss is similar to that of Frankenstein ' s Monster , creating something akin to an Abomination in that it is sewn together of human parts , but also part machinery . Attacks and Abilities . Thaddius has around 6 . 7 million HP according to SWStats taken of a kill . Phase 2 . When both adds are down , players have a few seconds to get to the central platform before Thaddius is engaged . Simply tank each sub - boss near where they start and DPS them down . Players with mana bars should fight Stalagg , while everyone else should fight Feugen . Mages and hunters can outrange the mana drain , so if the groups are too uneven then they can fill in for the missing spots . Note that they sub - bosses must be killed within a short time of each other , or they will resurrect each other ( much like Thekal in Zul ' Gurub ) . All players head to Thaddius himself . There is roughly 20 seconds between killing both sub - bosses and getting charged . Before the raid , assign locations for positive and negatively charged people to stand ; for example , negatively charged people could stand west of Thaddius , while positively charged players stand to the east . Thaddius will make a Polarity Switch roughly every 30 seconds . Players whose polarity changes have 5 seconds to run to the location for their new polarity . There is no need to avoid other players changing sides , and they should run straight to his new position , using the shortest path available ( that is , running through Thaddius ) . It is important to stand in 2 positions because Thaddius must be killed within 5 minutes ( to avoid the Enrage ) and the damage bonus from stacking players on either side will allow him to be killed . Strategy . " Note : If you chronically miss the jump heading for Thaddius , use a Swiftness Potion and just run forward without jumping , you will land on the platform . Rogues can use Sprint " instead . Thaddius doesn ' t deal very much melee damage to the main tank , so you can use only 3 - 4 healers for him . The rest of the healers can either heal the rest of the raid , or deal damage to Thaddius in this phase . Thaddius hits for about 2k normal , 3 . 3k crushing . The damage multiplier the rest of the raid has can make holding threat for a warrior tank a little bit iffy . ( Bear tank threat generation benefits from the damage multiplier , unlike warrior abilities , and is advantageous for this fight . ) In order to have a prayer of holding threat , the MT has to move with others of his charge , if he ' s unstacked by the debuff , he will find himself making frequent use of his Taunt button ( Thaddius is tauntable ) . Assumed Strategy . Blizzard ' s release of the Anatomy of a Monster : Thaddius revealed some clues into the strategy of fighting this abomination . At the start of the encounter , the players don ' t fight Thaddius himself ; they battle two wight s that are in the same room on two separate platforms . These platforms are not directly connected , so to fight them the raid has to split up and attack both wights at the same time . But it gets worse . . . the wights have the ability to snatch a player from one platform and pull him to the other , which is a way to split up the raid and divide their forces . One central part of the whole Frankenstein myth is the way the monster was brought to life using lightning and electricity . Voltage is created when electric charges are separated ; when the charges are brought together , the stored energy is released in an electrostatic discharge - a basic electric shock . When players finally go up against Thaddius , he will " polarize " the raid group by making half the raid positive and the other half negative . When positive and negative raid members get too close to each other . . . Well , let ' s just say that you want to get as far away from players with an opposite charge as possible , which further plays into the idea of separating the raid . Quotes . The following quotes ( echoing screams would probably be more accurate ) are heard echoing throughout Naxxramas in addition to during the fight with Thaddius , and will stop after Thaddius dies . The screams sound like those of a woman or child : The music video of Aphex Twin ' s song " Come to Daddy " has voices the same as or very similar to the echoing screams in Naxxramas described above ( Particularly the " Stop , please stop . . . " line ) . Whether this is a deliberate addition by an Aphex Twin fan who works for Blizzard or the recorded sounds merely sound the same is a matter of speculation .