The Arcane Archer's blessing allows you to choose 2 more Arcane Shot options and gain 1 more use of the Arcane Shot ability. Also once per turn when using an Arcane Shot you can choose to reroll all the damage dice and choose either total. They are all magical effects, and each one is associated with one of the schools of magic.

If an option requires a saving throw, your Arcane Shot save DC equals 8 + your proficiency bonus + your Intelligence modifier.

You are required to be an Arcane Archer of the fighter class.