Descendants

Horrific monsters that began appearing on the planet of Cosmivengeon roughly a week or so following the rise of Eternity, a blood-red, alien celestial mass. Descendants of Eternity are grouped into five classes (1-5) depending on their strength, size, and destructive capabilities. Higher-class Descendants are able to warp nearby terrain/atmospheres and even generate lesser creatures to aid them, whereas lower ones cannot. 

Descendants are primarily dealt with via the CSSO's various programs, though it's not unheard of for rogue groups to attempt bringing them down on their own; this is immensely risky, as anyone not blessed with Awakening powers are liable to be overwhelmed by the offensive capabilities of such beasts. 

Upon their destruction, Descendants will explode into embers and release a rainbow crystal of various sizes; the purpose and capabilities of these crystals is currently unknown, but research on them is constantly afoot. 

Descendants are listed based on order of class, each class listed from weakest to strongest in that ranking.