Ragnarok

Ragnaroks are unique Abyss of incredible power, each capable of destroying an army on its own.

Description
In general, the Ragnaroks are enormous monsters that tower above almost all Drag-Knights. Each one has a unique and inhuman appearance. One Ragnarok dwells in each of the seven Ruins and emerges if the Ruin is disturbed. Each Ragnarok contains a crystal known as a Grand Force in its body, which can only be obtained by killing it.

Sacred Eclipse is an exception to the above. It is humanoid in its default form (but can take on other forms at will), is not associated with a Ruin, and does not contain a Grand Force.