Violet Void

You gain the service of a familiar (Void), a spirit that takes an animal form you choose: bat, cat, crab, frog (toad), hawk, lizard, octopus, owl, poisonous snake, fish ([Tooltip Not Found]), rat, raven, sea horse, spider, or weasel. Appearing in an unoccupied space within range, Void has the statistics of the chosen form, though it is a celestial, fey, or fiend (your choice) instead of a beast.

Void acts independently of you, but it always obeys your commands. As a recon spell,  Void has Advantage on Stealth checks and Initiative. In combat, it rolls its own initiative and acts on its own turn. Void can't attack, but it can defend itself and take other actions as normal to get out of the situation.

You can temporarily dismiss Void to a pocket dimension. While it is temporarily dismissed, you can cause it to reappear in any unoccupied space within 30 feet of you. Alternatively, you can dismiss it completely. Whenever Void drops to 0 hit points it disappears into the pocket dimension, leaving behind no physical form, it leaves behind in its space anything it was wearing or carrying. It reappears after you cast this spell again. 

You can communicate with Void telepathically, you can see through Void's eyes and hear what it hears, gaining the benefits of any special senses that Void's form has. During this time, the group is deaf and blind with regard to their own senses, but group members are able to utilize perception type spells through Void.

There cannot be more than one Void at a time. If you cast this spell while you already have Void, you instead cause it to adopt a new form. Choose one of the forms from the above list. Void transforms into the chosen creature.