Banshee of the death wish

Detect Life. The banshee can magically sense the presence of creatures up to 5 miles away that aren’t undead or constructs. She knows the general direction they’re in but not their exact locations.

Incorporeal Movement. The banshee can move through other creatures and objects as if they were difficult terrain. She takes 5 (1d10) force damage if she ends her turn inside an object.

Innate Spellcasting. The Banshee´s innate spellcasting ability is Charisma (spell save DC 16, +8 to hit with spell attacks). It can innately cast the following spells, requiring no material components.

At will: dancing lights,mage hand,mage hand, message, prestidigitation, chill touch (damage = 2d8)

Using a legendary action: maximilian´s earthen grasp

1/day: bestow curse, suggestion

Eternal Revenge. If the corpse of the banshee was not targetet by a remove curse spell of some similar effect, a destroyed banshee of the death wish will return in its ghostly form after 2 days (7d12 hours), regaining all its hit points, appearing within 10 feet of its former body, as long as the creature, who is the reason for the spirits existence, is still alive.

Corrupting Touch. Melee Spell Attack: +8 to hit, reach 5 ft., one target. Hit: 9 (2d6 + 3) necrotic damage.

Horrifying Visage. Each non-undead creature within 60 feet of the banshee that can see her must succeed on a DC 15 Wisdom saving throw or be frightened for 1 minute. A frightened target can repeat the saving throw at the end of each of its turns, with disadvantage if the banshee is within line of sight, ending the effect on itself on a success. If a target’s saving throw is successful or the effect ends for it, the target is immune to the banshee’s Horrifying Visage for the next 24 hours.

Wail (Once per Day). The banshee releases a mournful wail, provided that she isn’t in sunlight. This wail has no effect on constructs and undead. All other creatures within 30 feet of her that can hear her must make a DC 13 Constitution saving throw. On a failure, a creature drops to 0 hit points. On a success, a creature takes 7 (2d6) psychic damage.

Possession (Once per Day per targert). One humanoid that the banshee can see within 5 feet of it must succeed on a DC 14 Charisma saving throw or be possessed by it; the banshee then disappears, and the target is incapacitated and loses control of its body. The banshee now controls the body but doesn't deprive the target of awareness. The banshee can't be targeted by any attack, spell, or other effect, except ones that turn undead, and it retains its alignment, Intelligence, Wisdom, Charisma, and immunity to being charmed and frightened. It otherwise uses the possessed target's statistics, but doesn't gain access to the target's knowledge, class features, or proficiencies.

The possession lasts until the body drops to 0 hit points, the banshee ends it as a bonus action, or the banshee is turned or forced out by an effect like the dispel evil and good spell. When the possession ends, the banshee reappears in an unoccupied space within 5 feet of the body. The target is immune to this banshees's Possession for 24 hours after succeeding on the saving throw or after the possession ends.

Cast spell. The banshee casts a spell.

Incorporeal Evasion. The banshee adds 4 to her AC against one attack that would hit it. To do so the banshee must see the attacker. 

The banshee can take 1 legendary action, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature´s turn. The banshee regains spent legendary actions at the start of its turn.

Detect. The banshee makes a Wisdom (Perception) check.

Cast Spell. The banshee casts maximilian´s earthen grasp or a cantrip.