Amulet of the Wolf (Wakened)

This amulet is in the shape of a Wolfs head. Encrusted with jewels and made of intricately woven together silver, it has an empty chamber inside. To attune to the amulet, a creature must have more than one form or be granted natural weapons by class or race. A creatures racial weapon, such as Tabaxi claws, that do not specify it is a natural weapon but can be used for unarmed strikes, counts as a natural weapon for the amulet. 

Slumbering (Uncommon). You have advantage on Wisdom(Perception) checks that rely on hearing or smell. Additionally, Whenever you roll a 20 on your attack roll with your natural weapons, the creature is knocked prone.

Stirring (Rare). Has the Slumbering property. In addition, you gain a magical +1 bonus to attack and damage rolls made using natural weapons. When you make a successful attack with your natural weapons, the damage die increases by one size.  

Wakened (Very Rare).The Wakened Amulet has the Slumbering property and it improves on the Stirring property.  The bonus to attack and damage rolls increases to +2. Additionally, If an ally is within 5' of you when you start your turn and you do not move before taking your action, then you have advantage on the first attack you make that turn with natural weapons. The ally must be conscious and not incapacitated.

Attunement: To attune to this amulet, you must be a creature with natural weapons or a racial feature that grants unarmed strikes.

Notes: Advantage: Perception, Bonus: Natural Attacks, Damage: Natural Attacks, creature that has more than one form or that is granted natural weapons by class or race. Racial unarmed strikes (such as Tabaxi Claws) count as natural weapons