How Did Shakespear Come Out With His Ideas?

He  tough of them with his magical powers

From his reading. Shakespeare was a voracious reader. I have several works on Shakespeare, all of them referring to the amount of reading he did. His favourites were, Ovid,(Publius Ovidius Naso) whose "Metamorphoses" was bought for him as a boy by his mother, Plutarch, Translated by Sir George North, and  Raphael Holinshead and Sir Edward Hall, who both produced detailed histories of the English Plantagenet dynasty. Several other Shakespearean works can be directly traceable to Boccaccio, Robert Greene, Thomas Lodge, Cinthio, Sir Philip Sydney, Arthur Brookes and several other authors who, gave Shakespeare the necessary information with which he derived his plots.