Complex sentence: The Toa emerge from Makuta's lair victorious, only to discover that the villain has unleashed a new threat to the island: the Bohrok Swarms, six breeds of robotic bug-like drones designed to "cleanse" the island to its former barren state.
Split into simpler sentences: The Toa emerge from Makuta's lair victorious, only to discover that the villain has unleashed a new threat to the island: the Bohrok Swarms. Six breeds of robotic bug-like drones designed to "cleanse" Mata Nui to its former barren state.