Opening your palm, you release a puff of dust, the pestilence of mummy rot. Choose one creature within range to make a Constitution saving throw. On a failed save, the target is cursed with mummy rot. The cursed target can’t regain hit points, and its hit point maximum decreases by 3d6 for every 24 hours that elapse. If the curse reduces the target’s hit point maximum to 0, the target dies, and its body turns to dust.   The curse lasts until removed by a spell or magical effect that cures mummy rot. A remove curse spell cast using a spell slot of 5th level or higher also ends this spell