Memblur or mem blur is a colloquial nickname for an effect that zeroes out all Hate meters ("aggro"). This is effectively a "reset" of Hate. Spells with a memblur effect exist throughout Norrath, almost exclusively amongst Named mobs. The most frequent effect of a memblur is the Main Tank dropping a position or more in the ranked Hate list, requiring the Tank to regain aggro as rapidly as possible in order to prevent less protected, mitigating party members from taking too much damage.