Bind Familiar Form

You transfer the form and capabilities of one willing creature with a CR of 1 or lower, to your familiar. The creatures willingness is up to the DM's discretion. The creature and the caster's familiar must stay within range of the spell for the entirety of the spells duration. At the end of the ritual, you can choose if your familiar takes that creatures form now or not. Any time you cast the find familiar spell, this form becomes one of the options for your familiar to become. A form cannot be copied from another familiar, or a creature polymorphed into that form.