Wayward Siren, Enchantress

Spellcasting.  This creature is a 5th level caster, with a casting stat of CHA, spell save DC 16, and knows the following spells.

Cantrips (at will):  Mind Sliver, Message, Friends

1st level (4 slots):  Bane, Charm Person, Disguise Self

2nd level (3 slots):  Calm Emotions, Suggestion

3rd level (2 slots):  Bestow Curse

Slicing Melody.  The enchantress' attacks deal 9 (2d8) additional psychic damage on a hit (included in attack description).

Magic Resistance. The enchantress has advantage on saving throws against spells.

Sky Dance. The enchantress flies up to half its speed without provoking opportunity attacks; during this movement the enchantress can make three attacks, only one of which can be its claws, or cast a spell.

Claws. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 8 (2d4 + 3) slashing damage plus 9 (2d8) psychic damage.

Whip. Melee Weapon Attack: +6 to hit, reach 10 ft., one target. Hit: 5 (1d4 + 3) slashing damage plus 9 (2d8) psychic damage.

Luring Song. The siren sings a magical melody. Every humanoid and giant within 300 feet of the siren that can hear the song must succeed on a DC 16 Wisdom saving throw or be charmed until the song ends. The siren must take a bonus action on its subsequent turns to continue singing. It can stop singing at any time. The song ends if the siren is incapacitated.

While charmed by the siren, a target is incapacitated and ignores the songs of other sirens. If the charmed target is more than 5 feet away from the siren, the target must move on its turn toward the siren by the most direct route, trying to get within 5 feet. It doesn't avoid opportunity attacks, but before moving into damaging terrain, such as lava or a pit, and whenever it takes damage from a source other than the siren, the target can repeat the saving throw. A charmed target can also repeat the saving throw at the end of each of its turns. If the saving throw is successful, the effect ends on it.

A target that successfully saves is immune to this siren's song for the next 24 hours.