Zombiefest ! < onlyinclude > < / onlyinclude > Zombiefest ! is a Wrath of the Lich King heroic achievement needed for the Glory of the Hero achievement , rewarding the Reins of the Red Proto - Drake . Strategy . When attempting this achievement , there are an insufficient number of Risen Zombies within the first area of Stratholme where the 10 waves are fought . However , more can be found in the mini gauntlet after Chrono - Lord Epoch . Therefore in order to get this , when you fight Salramm the Fleshcrafter drag and kill him in the Town Hall where Arthas encounters the infinite dragonflight . After you have killed him , make absolutely sure you do not kill any zombies afterwards , as they will not respawn . From there , continue the instance as normal . Do not be concerned about talking to Arthas ; just be patient and he will eventually run down in front of the Town Hall and will ignore all the zombies , and can be talked to safely from the steps without pulling any of them . After you defeat Chrono - Lord Epoch speak to Arthas and he will open the bookcase , then have your tank run back and pick up every single zombie and kite them down the tunnel to where the gauntlet is . When the zombies get close , pick up 10 - 20 zombies from the gauntlet and AoE everything down , quickly picking up and killing any additional zombies required if you still don ' t have enough . There are exactly 85 zombies in the first half of the instance . An issue with having the tank pull all the zombies is that there may be an overwhelming amount that would instantaneously stack up on damage and one - shot the tank . ( assuming each zombie does 200 damage on plate , 80 + would be stacking 16000 damage . ) Likewise , if the healer pulls aggro by doing direct heals then they will undoubtedly pull aggro and get one - shot as well . The tank cannot pull these zombies off without using a taunt cooldown or doing damage and accidentally starting the one minute timer . ( Killing one zombie will start the timer , and killing another zombie will not start it again until those 60 seconds are up . ) Paladins can use to completely absorb all hits under 500 . A priest ' s will trick the mechanics to bring the healing aggro upon the tank itself and make it harder to shake these zombies off . If a healer can register themselves on the aggro table of all the zombies and run to the other side of the instance while spamhealing themselves , then they would grab aggro from the tank and bring them close to the start of the gauntlet where AoE casters can leave a trap down for all the zombies to just walk into . Warlocks can , mages can , hunters can , rogues can , paladins can , Death Knights can , etc . When killing all those zombies , the group will have ample time to pull the elite mobs and finish off the rest of the zombies necessary to get the achievement . Due to patch 4 . 01 it is no longer possible to kite Salramm to the town hall and have the zombies spawn in , the new method NOW requires you to hold ground from where he spawns and let the zombies spawn and converge on you , when you feel there is enough zombies , you can use any AOE effect to get this achivement Note - 4 . 0 . 3 This Strategy still works However instead of Pulling him into the town hall pull just outside keep in mind tank will have to keep taunting so he doesn ' t reset . once outside of the town hall AOE the Ghouls and wait for them to start re - spawning . Once they start finish him off then run inside . Defeat third boss . " Warning ! - unconfirmed * Don ' t talk to Arthus untill you have gone back and Collected the Ghouls as talking to him might Force despawn them unless you have agro . My group had them all agro and had the last person talk to arthus at that time . " If that doesn ' t work just run the gauntlet without Arthus and collect all the zombies and then AOE them down , there is more than enough for the achievement