Because, these mutated Beast Clan are far too powerful!
Today, one of the three great recognized powerhouses of the Beast Clan is such a mutant!
Moreover, such beings rarely have offspring. After their death, everything they had belongs to the clan.
Therefore, whenever such beings appear, all clans in the Beast Clan regard them with utmost importance and give them focused training.
However, these beings have exceedingly peculiar personalities and rarely stay within the clan.
Just look at the Ten Thousand-slaying Demon Bull, slaughtering all kinds of their own kind in the Beast Clan, completely not regarding himself as part of it, looking every bit like a third kind of mutation phenomenon.
And generally, for such mutated Beast Clan, their very selves are terrifying treasures; due to mutation, a part of their body undergoes change and contains immense power.
