Vilethli Eärendiloth, Voice of Dol-Caelumandor

Twisted Ancestry. Vilethli has advantage on saving throws against spells and magical effects, and magic can’t put her to sleep.

Sunlight Sensitivity. While in sunlight, the drow has disadvantage on attack rolls, as well as on Wisdom (Perception) checks that rely on sight.

Concentration Breaker. When Vilethli damages a creature that is concentrating, it has Disadvantage on the saving throw it makes to maintain Concentration.

Action Surge (2/Short or Long Rest).  Take an additional action.

Legendary Resistance (3/Day). If Vilethli fails a saving throw, she can choose to succeed instead.

Multiattack. Vilethli makes four attacks with Sunkiller or Weaver's Needle and uses Shadow Step or Spellcasting.

Sunkiller. Melee Attack Roll: +14, reach 5 ft. Hit: 15 (1d10+10) Slashing damage plus 8 (2d8) Necrotic damage.

Weaver's Needle. Ranged Attack Roll: +14, range 30/120 ft., one target. Hit: 12 (1d4+10) Piercing damage and the target must succeed on a DC 15 Constitution saving throw or have the Poisoned condition for 1 hour. The target can attempt the save again at the end of each of its turns. If the saving throw fails by 5 or more, the target is also Unconscious while poisoned in this way. The target regains consciousness if it takes damage or if another creature takes an action to shake it.

Shadow Step. Vilethli teleports up to 60 ft to a point in dim light or darkness that she can see.

Spellcasting. Vilethli casts one of the following spells, requiring no Material components and using Constitution as the spellcasting ability (spell save DC 18):

At will: dancing lights, darkness, blur

3/day: silvery barbs, counterspell

1/day each: faerie fire, levitate (self only), swift quiver

Tactical Shift. One creature Vilethli can see can move up to their speed without provoking opportunity attacks.

Commander's Strike. Vilethli commands one creature she can see to strike at an opportune time. They can use their reaction to make a single melee weapon attack at advantage.

Devour Arcanum. When a creature within 20 feet of Vilethli casts a spell, she can use a reaction to move to a space within 5 feet of the caster and make an attack with Sunkiller. This movement does not provoke opportunity attacks. If the attack hits, Vilethli heals for the damage dealt plus the level of spell cast.

Parry. When a creature makes an attack roll against Vilethli, she can roll a d6;{"diceNotation":"1d6", "rollType":"roll", "rollAction":"Parry"} and add the number rolled to her AC against the triggering attack.

Vilethli has three legendary actions that she can use per round of combat.

Strike (Costs 1 Action). Vilethli makes an attack with Sunkiller or Weaver's Needle.

Spellcasting (Costs 2 Actions). Vilethli uses her Spellcasting.