True Familiar

Choose a beast that is of challenge rating 8 or lower. Over the course of 1 day, you conjure a Gargantuan spiritual version of the creature you chose. It appears in an unoccupied space within range. 

Your True Familiar acts independently of you, but it always obeys your commands. In combat, it rolls its own Initiative and acts on its own turn. A familiar can take any one of the actions on it's stat block or the Dash, Disengage, Search, Help, or Hide action. If the form you chose for your True familiar has a flying or swimming speed, it gains that speed equal to its movement speed.

When the True Familiar drops to 0 hit points, it disappears, leaving no remains. It reappears when you cast this spell again.

While your True Familiar is within 1 mile of you, you can communicate with it telepathically. Additionally, as an action, you can see through you familiar's eyes and hear what it hears until the start of your next turn, gaining the benefits of any special senses the familiar has. During this time, you are deaf and blind in regard to your own senses. You cannot have more than  one true familiar at a time. If you cast the spell while you already have a true familiar, you instead cause it to adopt a new form. Choose another beast that is of challenge rating of 8 or lower. Your true familiar transforms into the chosen creature. 

Finally, when you cast a spell, your familiar can deliver the spell as if it had cast the spell. The familiar must be within a mile of you and use it's reaction to do so. If the spell requires an attack roll, you use your attack modifier for the roll.