Monstrous Shift

Your ancestors became the monsters they were feared to be, and their lineage has passed down to you. You gain the following benefits:

• Increase your Charisma score by 1
• Select three medium-sized or smaller monsters with the "monstrosity" type whose CR is no higher than half your character level. Upon gaining a level, you may add a new monster to your list.
• Once per long rest, you may take the shape of one of your selected monsters for 1 hour as an action. During this time, you gain that monster's physical stats and natural attacks, and you may not cast spells or talk while in this form, unless the base monster is able to do so. You do not gain access to any of the monster's special feats, though you do gain any physical traits it possesses (Climb Speed, Underwater Breathing, etc). You may drop this form at any time with a standard action.
• While transformed, any creatures unfamiliar with you and this ability will become hostile to you. You have disadvantage on diplomacy and persuasion checks, and advantage on intimidation checks.