This is only available via buying Dungeon Defenders: Quest for the Lost Eternia Shards Part 1, or the full pack. This is an extremely hard map, where Super Loot has a high chance of dropping. There are no rewards for completing this. The goal is to complete each wave within the given time, like the regular Uber Monster Fest. There are no crystals, and you have limited lives. I recommend this for people levels 70-74. Even then, this will still be a nightmare.