Sometimes, only a single skill was required to change the landscape of a battle field entirely.
Such skills required extremely great timing and effort, and most of all had to have a huge aspect of luck to be carried out successfully.
With Noah's actively flashing mind, he saw an extremely clear path that if taken...could cause for an explosive method of growth in a short amount of time. He saw his number of forged stars had increased by a thousand from each of the Black Hole experts as this count was brought over 40,000 stars, and he realized the remaining 60,000 could very easily be gained as long as he took down 60 more Fiends at the Realm of Black Hole!
It was mentioned he could 'very easily' gain such a large number of stars, but it was an extremely hard thing to accomplish as he effectively wanted to take down 10 times the number of Black Hole Fiends that he did with his first surprise attack.