Adelaide’s Severed Limb

You channel dark energy, invoking the twisted magic of necromancy. Upon casting this spell, you have two options:

Quick Severance: Make a ranged spell attack against a creature within range. On a hit, the chosen limb of the target falls off, causing them great pain and distress. The severed limb remains detached for 3 rounds or until dispel magic or dispel curse is cast upon it. The target takes 2d8 psychic damage upon a successful hit.

Longer Severance: Instead of making a ranged spell attack, you can choose to touch a creature within range. The target must make a Constitution saving throw against your spell save DC. On failure, their limb begins to dissolve slowly before their eyes. The target takes 1d8 psychic damage at the end of each round for up to 5 rounds. The affected limb fully disappears at the end of the duration, leaving a void where it once was. The limb does not regenerate for up to 10 minutes or until your concentration on the spell is broken. On a successful save, the target takes half 5d8 psychic damage and the limb is unaffected. 

Creatures with a challenge rating of 19 or higher are unaffected by the effects of this spell.

At Higher Levels: When you cast this spell using a spell slot of 5th level or higher, you can choose an additional limb for each additional spell slot level expended.