Klaus and his incarnations spent more time planning their next moves.
Now that he had exposed the Celestial Supreme and pretty much dismantled Heaven's Court, he knew he would have to step up and make his next moves.
The Celestial Supreme would probably come for revenge. Someone like him, who had schemed with someone like Axarax, wouldn't go down without a fight. So Klaus knew he had to be ready to face him.
He also knew Axarax would come after him. He had taken 10% of his blood essence, which, from his calculations, would aid three more incarnations in becoming gods.
Axarax already had plans to find more bodies and send down the rest of his power. As someone who knew how dangerous that individual was, Klaus had no plans to underestimate him. Even with 8 bodies, he is already dangerous.
He had to find his bodies and kill all of them. If he allowed him time to grow, he would become a threat Klaus could not afford to have around when the Great Catastrophe arrived.
