Changing Arcana

Your innate magic shifts and twists to suit your needs when the time is right.

As a bonus action on your turn, you can expend any number of Sorcery points to change a spell you know with a different spell on the Sorcerer spell list, unlearning one you know and learning a different one. The spell that you learn this way must be of a level that you can cast, and of a level equal to the amount of Sorcery Points you spent, minus 1 (for example, if you spent 5 sorcery points, you can learn a 4th level spell this way).