Reincarnation in Another World: the Complete Magic System

After being reincarnated into a different world, I actually gained the most powerful system that "knows all magic in the world"? ! A magician can only practice one type of magic? Sorry, I am proficient in all attributes! Does the library of the Academy of Magic contain fragments of ancient secrets? Sorry, I have the whole set! Don't have enough magic power to use higher magic? Sorry, there is also a magic that speeds up the cultivation of magic power! Dark magic exclusive to villains? Party magic to liven up the atmosphere? Magic used in close combat? Incarnation magic that changes one's appearance? Hypnosis magic that makes the other party listen to you? I don't want to stress it any more! ! These - I know all of them! Potion? Oh, and there are all the potion recipes too! That's right, let's become "the most powerful magician in the world" step by step!