Anub ' Rekhan Anub ' Rekhan is the first boss of the Arachnid Quarter in Naxxramas . Commander Eligor Dawnbringer : " " Anub ' Rekhan , one of the finest Spider Lords of Azjol ' Nerub , was brought under control of the Scourge when he and his commander , Anub ' Arak , were finally defeated by the Lich King many years ago . It is said he was the most loyal of Anub ' Arak ' s commanders . " " In the book " On Naxxramas " , a low - level member of the Scourge finds himself distressed by " the perverse nerubian . . . " always calling with invitations to its " parlor . " 25 - man Abilities . Crypt Guards . There will be two adds that start the fight with Anub ' Rekhan ; each has 521 , 000 health . 10 - man Abilities . Crypt Guards . One of these adds spawns after every Locust Swarm . In addition , one spawns approximately 20 seconds after Anub ' Rekhan is pulled . They have around 234 , 000 health . They have a cleave , a stacking acid spit DoT that ticks for 500 a stack , and a low - hp frenzy that increases damage by 50 % and attack speed by 60 % . Strategy . Although doable with two tanks , three tanks are ideal for this encounter . One of them should tank Anub ' Rekhan , while the others tank the Crypt Guard adds and the Scarabs that spawn from their corpses . In the 10 - man encounter , the two Crypt Guards are not present at the start of the fight , making the third tank unnecessary . A hunter is helpful but unnecessary . The main tank engages Anub ' Rekhan and drags him back to where he was standing originally ( note that tanking him against the wall can cause evade bugs should the tank be impaled ) . In the 25 - man fight , the other tanks pick up their Crypt Guards while the DPS focus them down . These should be tanked and killed relatively close to Anub ' Rekhan . Due to the acid DoT the Crypt Guards apply infinitely these should be killed quickly . After this , the raid should spread out in a semi - circle around Anub ' Rekhan to minimize the effects of impale . Mages should be ready near the Crypt Guard corpses to frost nova the Corpse Scarabs as they come out ; the offtanks should be on or near these corpses to pick them up . Ranged DPS should focus and kill the scarabs before returning to Anub ' Rekhan . You should have a decent amount of time to DPS Anub ' Rekhan before the first Locust Swarm . One player — ideally a Hunter — and a healer stand 30 yards from the main tank on the edge of the room past the ring of slime . When Locust Swarm is cast , all players must immediately run from Anub ' Rekhan to the other side of the room and remain more than 30 yards from him for the next 20 seconds . The main tank , when he sees the Locust Swarm cast bar , must begin kiting Anub ' Rekhan along the edge of the slime to the other side of the room . The hunter should have Aspect of the Pack on . The healer should move with them and avoid getting any stacks of Locust Swarm in order to be able to heal the tank and hunter should they be hit . A warrior tank should use Intervene to gain additional distance . Locust Swarm ends when Anub ' Rekhan reaches the other side of the room , where he should be tanked as before , with the raid spreading out in a half circle . Another Crypt Guard spawns during this time ; pick up and kill it . Again , Mages should be to be aware of Corpse Scarabs spawning from it . After this , the encounter continues , with Locust Swarms coming every ~ 90 seconds until Anub ' Rekhan is dead . Alternate strategy ( 10 man version ) . The kiting strategy can be difficult to master for a group with poor coordination . Ranged DPS might get caught in the swarm trying to kill the adds when the tank kites , and cause everything to go wrong . An alternative strategy is to not kite at all , but have the tank stay put and take the full damage of the swarm while the healers spam heals on him . This is entirely possible and will make the fight more of a tank - and - spank with extra healing on the swarm . Death Knights are good tanks for this tactic because they can time their damage reduction ability with the swarm and take less damage . Using Anti - Magic Shell just before Locust Swarm is cast will make you immune to the swarm for 5 seconds ( 7 if you have the glyph ) . Tanks simply have to make sure that they use their damage reduction ability before the swarm because it silences them . Once you enter the area where Anub ' Rekhan is located , have a hunter misdirect ( if available ) onto the main tank and pull the boss to the actual entrance doorway area and tank it there while the rest of the raid runs forward and splits into a semi - circle roughly in the center of the room . Have your secondary tank behind everyone , where the adds spawn . All ranged DPS should spread around to avoid the impale . The offtank can add some DPS or even some off - healing to the party , but be ready to pick up the adds that spawn in the back , as they can easily one - shot a cloth wearer . Once the add spawns and the offtank picks it up , all the DPS has to do is simply turn around and burn it down . Do the same when the Corpse Scarabs spawn . This tactic is meant to reduce any kind of confusion in the kiting method , so separating the boss and the add makes the fight really simple . Remember that this method only really work if your healers keep the main tank topped up , especially during the locust swarm . Due to the massive damage that tanks take from the end of a Locust Swarm , any off - healers — such as shamans or paladins — should assist in keeping the main tank alive during this phase . Note : The adds do not hit the offtank really hard , but with a low - DPS group the damage debuff can stack and be really painful . A nice way to prevent extra damage is to stun , as this prevents them from casting the debuffs at all ; these debuffs last for 10 seconds and are reapplied every 2 seconds , so if you can cast a stun ( such as Hammer of Justice ) when your tank has 8 seconds left on the debuff , and add one more at 2 seconds , the debuff will start to 0 again , largely reducing the damage taken . The goal is to have a chain stun ready when the elite is around 50 % health to reduce the overall damage taken . The adds are undead , so the paladin undead AoE stun can work for 1 sec . Extra Note : The small adds that spawn from the corpse are really fast and can get out of a consecrate .