You perform a ritual on a willing creature within range, binding your magic to its essence. The creature must remain within range for the duration of the ritual. Once the ritual ends, the creature becomes your familiar.   You can’t have more than one familiar at a time, such as from the find familiar spell or similar magic. If the familiar dies, or if you cast a spell that creates a new familiar while you already have a familiar from this spell, your connection to the familiar is broken, and it is no longer your familiar.   While your familiar is within 100 feet of you, you can communicate to each other 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 to your own senses.   When you cast a spell with a range of Self or 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 concentration, and the familiar is willing, you can choose to have the familiar maintain concentration on the spell.   Finally, you can use a bonus action and expend a spell slot to restore hit points to your familiar. Roll a number of d6 equal to the level of the expended spell slot. Add your spellcasting ability modifier to each roll, and then the familiar regains a number of hit points equal to the total result.