Battle for the Nexus
The Battle for the Nexus was released in September of 2013 after there was a security breach in the game (Thanks, SwatSec). The bosses in this dungeon are based on the bosses that SwatSec spawned in the nexus, except their HPs are scaled a lot higher.
The Battle for the Nexus key is no longer being sold in Nexus. The only way you may get this key is through a drop from an event chest.
See Manor of the Immortals for boss details.
See Woodland Labyrinth for boss details.
The initial Green Dragon in the Lair of Draconis. His details were later changed.
See Cave of a Thousand Treasures for boss details.
See Wine Cellar for boss details.
See Abyss of Demons for boss details.
See Snake Pit for boss details.
Drops of Interest
Spicy Wand of Spice