In Dalaran you have to , for example , kill Kel ' thuzad on 10 man to get attuned to Ulduar 10 man . Also to get attuned to ToC you have to kill Yogg ' saron . But you can ' t go to 25 man Ulduar if you have only killed Kel ' thuzad in 10 man and vice versa now correct me if I ' m wrong here . So simply , you need to kill previous raid tier ' s last boss to be able to do the current raid tier . I have heard there are raids going on all the time for Naxx and Ulduar so I ' m sure you will find a raid spot . <| sep |> not with the bxf 3 blunder <| sep |> That ' s true but those are the universally common ones . Magikarp is also a special case , since its stats increase massively after evolving . EDIT In fact , I ' m surprised Zubat Golbat doesn ' t also cost 25 Candies , like Rattata Raticate .