Albrecht's Faithful Hound

You conjure a phantom watchdog on yourself that always follows you for the duration, until you dismiss it as an action.

The hound has AC equal to [10 + your spellcasting ability modifier] and health equal to your [spell save DC x your proficiency bonus]. When a Small or larger creature comes within 30 feet of you that you're unaware of and isn't a friend, the hound starts barking loudly. The hound sees invisible creatures and can see into the Ethereal Plane. It ignores illusions.

At the start of each of your turns, the hound attempts to bite one hostile creature within 5 feet of you. The hound's attack bonus is equal to [your spellcasting ability modifier + your proficiency bonus]. On a hit, it deals 2d8 force damage.