Moonsinger

You are a chosen of the drow goddess Eilistraee, who has
blessed your soul with a touch of her divinity. As a sorcerer
with this Sorcerous Origin, you are free to pursue your own
path, but your soul will always be drawn to her ideals. Just
like Elistraee, her chosen (also known as moon dancers)
often share her love for beauty, song, dance, freedom,
moonlight, swordwork, and hunting, as well as her disgust
for evildoers. Chosen of Eilistraee are also known for their
great beauty and deadly skill with the longsword, which is
the favored weapon of the goddess that has chosen them.

Training in Song and Dance

At 1st level, you gain proficiency with longswords, and a
longsword has the finesse property when you wield it. A
longsword counts as a spellcasting focus for you. When not
wearing armor and not wielding a shield, your AC becomes
10 + your Dexterity modifier + your Charisma modifier.
You also gain proficiency in the Performance skill.

Moonsong

• While your Moonsong is active, you gain the
  following benefits:
• If you have moved at least 15 feet away from where you
  began the turn, you gain advantage on the next melee
  weapon attack you make that turn.
• Your movement speed increases by 10 feet and you are
  unaffected by difficult terrain.
• You gain a bonus to your AC equal to your Charisma modifier (minimum of 1).
• Creatures have disadvantage on opportunity attacks
  against you.
• You can use this feature a number of times equal to your
  proficiency bonus, and you regain all expended uses of it
  when you finish a long rest.

Sword Dancer

At 6th level, you can attack twice instead of once, whenever you take the attack action on your turn. Moreover, you can cast a cantrip in place of one of the attacks.

A long sword now has the light property when you wield it and counts as a spell casting focus for you.

Moonsong Encore

Starting at 14th level, your successful strikes invigorate you,
as you dance around the battlefield. Whenever you hit a
creature with a melee weapon attack during your
moonsong, you regain 1d8 hit points, deal radiant damage
to the target equal to that amount, and if it is your turn then
your speed is increased by 10 feet for that turn. You can
only trigger this effect once per creature per turn.

Waltz of the Dark Maiden

At 18th level, you learn the otto's irresistible dance spell
which doesn't count against your number of sorcerer spells
known, and you can cast it by spending 5 sorcery points.
When you cast this spell during your moonsong, you can
cast it as a bonus action and it doesn't require
concentration, but you can only affect up to one creature
with this spell at a time.

Chosen of Eilistraee Origin Spells

Spells granted to you because of your blessing.