A creature that has a heart in its body can attune itself to a Withered Heart. When he does so, the withered heart swaps places with the attuned being's living heart, each dawn he receives temporary health points equal to twice his hit dice. The withered heart becomes alive, but the living heart of the possessor withers and dies. A withered heart is able to function outside the owner's body, if it is destroyed the owner dies. If the owner dies but the heart is not destroyed, the withered heart returns to its original state and another being can attune to it. If not destroyed, his old heart also becomes a withered heart after his dead. This effect can be reversed by casting a remove curse and greater restoration spell simultaneously, or by casting a wish spell.

Notes: Bonus: Hit Points, any creature that has a heart in its body