Bast's Amulet of the Winterlands

This golden amulet has a cat's paw impression on it's face and it feels warm to the touch. Only a feline may wear it, and it changes size according to the creature it was bestowed upon. While wearing it, you gain the following benefits:

• You have significant resistance to cold damage. You can tolerate temperatures as low as −50 degrees F (-45.5 C) without any additional protection. If you can and do wear heavy clothes, you can tolerate temperatures as low as −100 degrees F (-73.3 C). - & - While the cold doesn't touch you, the force of things like pushing winds, the stinging of rain or ice, the effects of being wet, the stabbing of an ice devil's spear, or even the sheer bludgeoning power of a white dragon's breath can all still effect you.
• You can ignore difficult terrain created by ice or snow, (in example: snow boulders) but it does NOT grant you the ability to stick to slick ice. However, since you are a feline, your claws should be able to help with that. 
• If the feline is large enough and has a rider or is carrying another creature in some way, they too will feel the benefits of the amulet. And being feline, this includes creatures being carried by mouth, as a maternal feline is apt to do.

Given as a gift from the goddess Sharess (or Bast as she is also known), this was to be attuned to a feline only. It cannot be stolen from them nor will it fall off because it is held there by a magic that cannot be dispelled. It cannot be destroyed by any known means, but if the wearer dies, it is instantly destroyed. Even if the wearer is resurrected, the brooch is still gone. But it should be said that if the wearer is killed by someone or something, when the amulet disappears, it returns to Bast and informs her of who killed her chosen, permanently marking them as an enemy of hers.

Notes: Resistance: Cold, Cat, whether great or small beast - or - a player character of a Cat race., Buff, Movement, Necklace, Jewelry, Negates Difficult Terrain, Warm, enchantment, fabled