http://wiki.guildwars2.com/wiki/Assist_the_Ash_Legion
Why is this heart SO difficult to complete? All the NPC’s in the area are friendly, and you’ll be lucky to get an enemy mob every 5-10minutes.
Unless you were there for the battle to take the temple, you will spend 30minutes or so waiting for the occasional mob to spawn so you can get completion.
This needs to be looked at.