I tried to hold hate in the level 24 dungeon with my dark knight but i had my guildmate with me and he was leveling his black mage and he took away from me 3 mobs in the whole dungeon, because he hit 1 mob and the other dps hit another one so i had to switch target everytime, but nothing complicated to handle, i always started with unmend>scourge>unleash>hate combo>unleash>switch target>scourge>switchtarget>scourge>and so on, i also used the power that increase reduces your recast of skills to do more unleash when needed