Fey Ancestry. Davil has advantage on saving throws against being charmed, and magic can't put him to sleep.

Spellcasting. Davil is a 12th-level spellcaster. His spellcasting ability is Charisma (spell save DC 14, +6 to hit with spell attacks) He has the following bard spells prepared:

Cantrips (at will): mage hand, mending, minor illusion, vicious mockery

1st level (4 slots): cure wounds, disguise self, sleep

2nd level (3 slots): crown of madness, invisibility, suggestion

3rd level (3 slots): nondetection, sending, tongues

4th level (3 slots): compulsion, freedom of movement, polymorph

5th level (2 slots): dominate person, greater restoration

6th level (1 slot): Otto's irresistible dance

Dagger. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit:4 (1d4 + 2) piercing damage. Or Ranged Weapon Attack: +5 to hit, range 20/60 ft., one target. Hit:4 (1d4 + 2) piercing damage.