One Punch: Deduction of Eight Miraculous Skills at the Beginning

[One Punch Man + Demon Slayer + Red Eyes + Hokage + Spirit Cage + Pirate + Curse + From Zero...] Traveling through the world of One Punch Man, Luo Yu opened the god-level deduction system.
When deducing the Eight Wonders, I learned that I need to kill monsters to collect energy to speed up the deduction? But there seem to be not enough monsters, so is it feasible to create monsters by myself and build a monster farm?
Sykes: Everything will be done according to the will of the master~ Miss Zhu Shi: Since it is to save the world, Zhu Shi is willing to give everything~
Orochimaru: Such a crazy idea, it’s exciting to think about it~ Bai Yuekui: Since everything is under your control, Yuekui is also willing to help~