Animal Transfiguration

Through your extensive research into the effects of transmutation, or your strong affinity with nature, you have learned about a way to change your shape to that of a beast.

Spending 8 hours focusing on yourself and the essence of the creature that you wish to bond to your self, you gain to ability to turn into one beast of CR 1 or lower(similar to a druids Wild shape ability(cannot be done during a long rest). While in the form of the animal you retain your Charisma, Intelligence, and Wisdom scores. Your Constitution, Dexterity, and Strength scores become that of the beast. While in your animal form you cannot speak, cast spells, or take actions that the animal cannot take. Spells such as Detect Magic can see that you are an animal by magical means. 

Once you have completed the spell you immediately turn into the animal you chose and must remain in your form the full hour. If you somehow are unable to remain in your form for the full hour, you must cast the spell again and once again remain in your form for the full hour. After you have done this successfully you no longer need to cast the spell to transform and you don't have to stay in the form for the full hour.

You cannot change your animal even if you cast the spell again, unless you specifically wish to remove the "bond" by means of a greater restoration, remove curse, or wish spell, after which you will need to complete the process again.

You can turn into your animal for a number of times equal to your spell casting ability score. You remain in your animal form for an hour, or until you decide to turn back. Once you have expended all uses you cannot use this ability again until you finish a long rest.

You can be turned back into your normal self against your will by means such as Dispel Magic, taking damage that exceeds that of your animal form, and other spell ending effects..