When you reach level 38 you will be able to enter the Heroic versions of the dungeons, located around the world of Sarnaut. These versions contain even more powerful monsters than the regular versions of the dungeons (level 40), but they contain even greater rewards. Each heroic dungeon can only be completed once per day.
You can also speed up the building process of your astral ship by obtaining Symbols of Victory needed for the quest . The Symbol is a drop from the last boss in the heroic version of dungeons.
- List of Heroic Dungeons