Each manifestation of Fenrir is only as powerful as divine creations. This means that they can only use the power of his Cave Heaven and can't use any Divine Metacs to enhance their power.
Now that the size of his Cave Heaven is 821 million square kilometers and possesses an 800% amplification from his law fragments, the power of his Cave Heaven is 6(Cultivation Rank) × 821 million(Cave Heaven) × 9(Law Fragments), which is 44,334 units of divine power.
With this power, the manifestations of Fenrir can take on a rank 6 divine being with one rank 6 Divine Metac and a Cave Heaven that is 34 million square kilometers in size, with a 500% amplification from their law fragments.
The alternative is a rank 6 divine being with one rank 6 Divine Metac and a Cave Heaven that is 29 million square kilometers in size, with a 600% amplification from their law fragments. In general, the higher the amplification of the law fragments, the smaller the Cave Heaven has to be for the manifestations.
