Patron's Guardian

Your tie with your patron and their boons is even stronger than most allowing your familiar to attack alongside you. 

• As a bonus action on your turn you can cause your familiar to attack using their reaction.
• You may use your spellcasting modifier and proficiency in place of your familiars attack rolls, and may use your spellcasting ability modifier in place of their damage modifier.
• You may replace any saving throw DC imposed by your familiar with your Spellsave DC instead. 
• You may apply your proficiency bonus to your familiar's AC.