Dancing on the CeilingG 10

This achievement is unlocked by running through the Epic Dungeon called Castle Never. The Epic dungeon culminates with a battle with the Demon Orcus. For this achievement you must kill the second boss, a Mind Flayer called Cthylar five times with one character. The battle starts in a chamber that switches between the floor and the ceiling. For the achievement to count Cthylar must die while you are fighting him on the ceiling. Complete this task 5 times and the achievement will be yours. There are two requirements to enter this Epic Dungeon. The first thing is that you need to be level 70. Secondly you need to have a total item level of 2000. This can be found on your character sheet on the bottom left of the screen and to the right of your rotatable character.