Skylanders: Ring of Heroes - Hall of Chaos (Standard Dungeon) 

Another new mode to Skylanders Ring of Heroes has players take on Kaos himself in the Hall of Chaos. Kaos has three phases, each getting progressively harder, and he can inflict certain status ailments not seen from any other enemy.
Form two teams to take on the Dark Portal Master, and earn special Talent Cubes and Soul Stones of Doom Raiders to further enhance your formations.