Lex had exhausted most of the Internal Energy in his body, but with his External strength alone, he could kill the rest of the beasts with ease.
Smashing apart rock worms, Lex massacred hundreds of rock worm beasts, who despite their power, were no match for Lex.
Collecting all their beast cores, Lex was preparing as much energy as he could in preparation for his breakthrough into the Golden Mortal Rank, that required enormous amounts of energy.
Dashing towards where he had left his fox beasts, Lex was pleased to see that there were only a few casualties and his beasts were able to protect themselves and slowly take over more and more of the territory that belonged to the rock worm beasts.
Seeing his fox beasts being able to protect themselves, Lex sat down on the ground and began hungrily recovering his Internal and External energy, that had been drained during his battle against the Rock Worm King and other rock worm beasts along the way.