Amulet of the Unchanging

This simple locket contains a shard of lore left behind by a powerful archmage. When you hold the amulet, you can sense a strong feeling of regret emanating from it, but while the locket remains intact, the memory cannot be accessed.

While you are attuned to it, this amulet can't be removed against your will. Unless you choose to be affected, you are immune to the effects of the Wish spell and any spell or effect that would alter your form or age. Additionally, you stop aging and can't die from old age. If your attunement to this amulet ends, you begin aging again as normal.