Aspect of Lust

You imbue a creature with dark power. Choose a willing creature within range. Whenever this creature receives magical healing, they can double the hit points they regain. This comes with a cost; whenever the creature is healed, their hit point maximum is reduced by the amount healed until they complete a long rest. If the creature is under the effects of an Aspect of Greed spell, when the creature doubles the amount of damage healed by a spell, the hit point reduction is equal to the original hit points of healing.