Wizard's Apprentice Wizard Subclass

From publisher blurb: Are you a wizard who is just starting to practice your arcane skills in the real world? Choose the Wizard's Apprentice Wizard subclass for your next adventure! This is featured in The Kingdom of Grimsby Bremen Town-Musicians, but can also be used in any 5e adventure on its own. Subclass Description: You have learned the arcane arts from one of the best wizards, and now you are on your own to practice and expand on what you've learned out in the real world. Included Features: Teacher's Pet Beginner's Spellcasting Duck and Cover Controlled Spellcasting Advanced Spellcasting