1st-level Spell: Undead Familiar

Whispering (Necromancy)

You animate the corpse of a Tiny creature to serve you. The corpse can be from any creature, but uses the statistics of one of the following: bat, cat, crab, crawling claw, frog (toad), hawk, lizard, octopus, owl, poisonous snake, fish (quipper), rat, raven, sea horse, spider, or weasel. The familiar has the statistics of its chosen form, but its creature type becomes Undead and is immune to necrotic and poison damage.

The first time it would be reduced to 0 hit points, it can attempt a Constitution saving throw with a DC equal to the damage dealt. On a success, it drops to 1 hit point instead. When it is reduced to 0 hit points, it dies.

Your familiar acts independently of you, but it always obeys your commands. In combat, it takes its turn immediately after yours. A familiar can't attack, but it can take other actions as normal.

While your familiar is within 100 feet of you, you can communicate with it telepathically. Additionally, as an action, 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't have more than one familiar at a time. If you cast this spell while you already have a familiar, your previous familiar dies.

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. You can cause a spell to deal 1d4 bonus necrotic damage when delivered in this way - once you do so, you can't do so again until you finish a long rest or recreate your familiar.

Source: SMR

• Casting Time: 1 action
• Range: 15 feet
• Components: V, S, M (the corpse of a tiny creature and 10gp worth of perfume)
• Duration: Concentration, up to 10 minutes
• Ritual: Yes