I'm All-Powerful at the Beginning

Defeat everything in the world, a routine? Do you think I'm following the routine? What? You say I can't do it? Have you ever seen a magician who uses his fists after using his skills? Have you ever seen someone punching and suddenly pulling out a big sword? Have you ever seen someone slashing with a sword and then suddenly shoot you a fireball? You ask me why I'm so showy? Because I have an all-powerful start!