The advancing demonic beasts were incredibly powerful. They each spat out a demonic core, trying to absorb the surrounding black yin magnetic energy into their cores. However, the black yin magnetic energy was too terrifying. The moment their cores came into contact with the black yin magnetic energy, they started suffering tremendously. As for the demonic beasts not specializing in energies of extreme yin, they were directly killed.

It was clear just how terrifying the black yin magnetic energy was. 

"This energy belongs to the yin devouring rats!" roared a demonic rat as his figure increased in size. He opened his jaws and started swallowing the black yin magnetic energy.

This yin devouring rat was a Demon Sovereign and was confident in his strength...