Curse of the Black Lotus

9th-level necromancy

Classes cleric, druid, warlock, wizard

Casting Time:1 action

Range:Touch

Components:V, S, M (a lotus flower)

Duration:Permanent

You touch a creature within reach, afflicting it with a malevolent curse that can only be removed by an effect that removes curses and persists through effects that would suppress the effects of magic (such as an antimagic field). The curse marks the target with a magical tattoo of a black lotus flower where you touch it. As an action on each of your turns, so long as you and the cursed creature are on the same plane of existence, you can activate the magic of the curse and force the target to attempt a Constitution saving throw. On a failed saving throw, the target’s hit point maximum is reduced by an amount of your choice, to a maximum reduction of 100 hit points. On a success, the target instead has it hit point maximum reduced by 10d6. A creature whose hit point maximum is reduced to 0 in this manner is slain instantly. This reduction lasts until the curse is removed.