Large red stone with multiple facets encircled with adamantine with a single loop at the top.  The stone has what looks to be a whisp of black smoke in the center that is constantly moving.

Strength of the Wolf

Your Constitution score is 19 while you wear this amulet. It has no effect on you if your Constitution is already 19 or higher without it. 

During combat you will automatically regain 2d8 of health.  Add 1d8 per every two levels gained starting at 6th level. 

Commune with the Dead

Once per day at either dawn or dusk the Wolf Stone allows the host to commune with one person who has passed.  

Host must be secluded and in a meditative state.  Once in this state the host will be vulnerable to attack and have disadvantage on all saving throws and attacks for 10 minutes after coming out of the meditative state.

Call the Great Mother (Raksha: Mother Wolf)

When the need is greatest the host may use the stone to call Raksha.  When the host rubs the stone with their thumb the black smoke inside the stone will take on the shape of the wolf and then exit the stone and will go where ever Raksha is present and call her to the host.  Raksha will aid the owner of the stone in one feat/battle before returning to the god plane.  Once the stone is used for this purpose it cannot be used again.  The stone then become a basic ruby worth 400 gp and loses all magical properties.

 Breath of Life (True Resurrection): Requires Level 4 Spell Slot: Once every 4 days.

You touch a creature that has been dead for no longer than 200 years and that died for any reason except old age. If the creature’s soul is free and willing, the creature is restored to life with all its hit points.
This spell closes all wounds, neutralizes any poison, cures all diseases, and lifts any curses affecting the creature when it died. The spell replaces damaged or missing organs and limbs.
The spell can even provide a new body if the original no longer exists, in which case you must speak the creature’s name. The creature then appears in an unoccupied space you choose within 10 feet of you.

Notes: They who possess the Wolf Stone must attune with it in order to take in the Spirit of the Wolf. Attunement takes 1 day.