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Magical Beasts of the First and Second Energy Levels are common threats on this land, without any unique appellations.
But starting from the Third Energy Level, even Magical Beasts begin to possess intelligence equal to or even far surpassing that of ordinary humans—they also start to learn what it means to cultivate, how to refine their skills, how to devour Magical Beasts that are beneficial to their advancement, and how to draw the power necessary for their own progression.
Magical Beasts of this power level are called Great Magical Beasts, Beast Kings, and Ritual Masters. They have their own names, nests, and even their own legends.
As for the Fourth Energy Level Magical Beasts, they are powerful enough to be called 'Titans,' a term that refers to the Giants and Behemoths that once ruled the world in the distant past.
In a sense, these Behemoths are beginning to touch the domain of Demigods.