User blog comment:ImperiexSeed/The oldest being, archangel or leviathan?/@comment-173.189.51.44-20120528182407/@comment-5110811-20120529015312

Yeah, there were way too many filler episodes. And not much was ever shown with the leviathans. All they did was eat, regenerate, shown superstrength, shapeshift, overpower an alpha, and kill two canon fodder angels. The Leviathans are Sera Gamble's lame attempt in trying to outdo Satan himself.