Animate Familiars

You gain the ability to raise small undead who act like a familiar. The undead takes the form of the creatures corpse used in the ritual. Such as: bat, cat, crab, frog (toad), hawk, lizard, octopus, owl, poisonous snake, fish (quipper), rat, crawling claw, raven, sea horse, spider, or weasel. Appearing in an unoccupied space within range, the familiar has the statistics of the chosen form, though it is an undead instead of a beast.

Your familiars are made to obey your commands, but does not posses its own intelligence complicated tasks come with the risk of explaining them to an undead. In combat, it rolls its own initiative and acts on its own turn. A familiar can't attack, but it can take other actions as normal.

When the familiar drops to 0 hit points, The spell fades and the corpse falls. As an action you can end the spell.  

Animated Familiars can not be expend into a pocket dimension, instead they do not need to sleep or eat. They can not be healed and sustain major damage depending on the condition of the corpses

While your familiar is within 100 feet of you, you can see through your familiar's eyes and hear what it hears until the start of your next turn, gaining the benefits of any special senses that the familiar has. During this time, you are deaf and blind with regard to your own senses.

You can have up to 3 Undead familiars at a time, You can cast the spell again with a new corpse to swap them out for different creature types stated below. 

Finally, when you cast a spell with a range of touch, your familiar can deliver the spell as if it had cast the spell. Your familiar must be within 100 feet of you, and it must use its reaction to deliver the spell when you cast it. If the spell requires an attack roll, you use your attack modifier for the roll.