Beerus is considered the most feared god among all gods in the universe due to his status as a God of Destruction. He is responsible for maintaining balance in the universe by destroying planets according to his own judgment. Despite being capricious, he can also delegate destruction tasks to others when it becomes bothersome. The Supreme Kais live in tense days because nobody knows how many planets will be destroyed during Beerus' wakeful periods, which vary depending on his mood. Beerus shares some traits with cats, such as laziness and the ability to destroy a person's planet for almost no reason at all. He also takes inspiration from Ancient Egyptian deities like Seth and Sekhmet in terms of physical design. Seth is known as a humanoid with a jackal-like head who represents desert, storms, darkness, evil, strength, winds, war, conflict, and chaos in ancient Egyptian culture.
He is actually the God of Destruction of Universe 7 (where the Dragon Ball story takes place) and he revealed that there are 12 Universes in total with beings even stronger than he is and that Whis is his master.Being a God, he posses immeasurable power, so much so that he can defeat Goku as a Super Saiyan 3 with merely two moves.Once every 1,000 years, the Supreme Kais and the Gods of Destruction go to each other's realms and hold a coordination meeting.
During one of these meetings held roughly 75 Million Before Age, they got into an argument over some trifling thing, and the short-tempered Beerus sealed Old Kai away inside the Z Sword, as it would not have been proper for him to destroy the Sacred World of the Kais itself.Beerus was also responsible for many different events in Dragon Ball world. He was the one who ordered Frieza to blow up Planet Vegeta.
He also blew up Norhern Kaio-sama's planet just because he lost in a game of hide-and-seek. Some time in the past he came to Earth and caused the extinction of the most dinosaurs on planet