Chiropteran Mastery

Pre-Requisite: Chiropteran Affinity

Your relationship with bats has become so strong that you can transform into a Bat Swarm, Giant Bat, or Dire Bat.  You can transform either as a bonus action or as a reaction to an attack.  You can make this transformation three times a day; each transformation lasts until you will it to stop or one hour has passed.

In addition, your familiar now grows to the size of a giant bat (this replaces your former familiar).  You can now use a bonus action to command the bat to perform an attack action.