Liska, the skulk daughter of Graz'zt.

Liska, daughter of Graz'zt and a skulk, is the last of the demon lord's children that I am statting up. She made an appearance in Dungeon 212, back in March 2013. Her stats are 4e, and while I'm not overly familiar with that edition, I would say she seems quite a lot more powerful than what I've come up with. Still, I like what I've come up with.

Liska

Medium fiend, chaotic evil

Armor Class 19

Hit Points 135 (18d8+54)

Speed 30 ft.

Str        Dex      Con      Int        Wis      Cha

18 (+4) 20 (+5) 17 (+3) 14 (+2) 16 (+3) 19 (+4)

Saving Throws Str +8, Con +7, Int +6, Cha +8

Skills Acrobatics +8, Deception +8, Intimidation +8, Perception +7, Sleight of Hand +8, Stealth +8

Damage Resistances cold, fire, lightning, poison; bludgeoning, piercing, and slashing from nonmagical weapons

Senses darkvision 60 ft., passive Perception 17

Languages Abyssal, Common, Elven

 Challenge 9 (5,000 XP)

Assassinate. Liska has advantage on any attack rolls against any creature that hasn’t taken a turn yet in combat. In addition, any hit she scores against a creature that is surprised is a critical hit.

Chameleon Skin. Liska has advantage on Dexterity (Stealth) checks made to hide. Liska may hide by pressing herself against a solid surface that is at least as tall and wide as she is. While she remains there without moving or taking actions, Wisdom (Perception) checks to detect her are made with disadvantage.

Fiendish Blessing. Liska’s AC includes her Charisma bonus.

Innate Spellcasting. Liska’s spellcasting ability is Charisma (spell save DC 16). Rule-of-Three can innately cast the following spells, requiring no material components:

3/day: alter self, command, detect magic

1/day: plane shift (self only)

Poison Use. Liska is proficient in the poisoner’s kit.

Sneak Attack. Once per turn, Liska can deal an extra 21 (6d6) damage to one creature she hits with an attack if she has advantage on the attack roll. Liska doesn’t need advantage on the attack roll if another enemy of the target is within 5 feet of it, that enemy isn’t incapacitated, and Liska doesn’t have disadvantage on the attack roll.

Stealthy Step. Liska is able to move stealthily at a slow, normal, or fast pace with no penalty.

Vanish. Liska can use the Hide action as a bonus action on her turn. Also, Liska can’t be tracked by nonmagical means, unless she chooses to leave a trail.

Actions

Multiattack. Liska makes two dagger attacks if wielding one weapon, three dagger attacks if wielding two weapons.

Dagger. Melee or Ranged Weapon Attack: +10 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 8 (1d4+6) piercing damage.

Equipment

Dagger of Venom. You gain a +1 bonus to attack and damage rolls made with this magic weapon.

You can use an action to cause thick, black poison to coat the blade. The poison remains for 1 minute or until an attack using this weapon hits a creature. That creature must succeed on a DC 15 Constitution saving throw or take 2d10 poison damage and become poisoned for 1 minute. The dagger can't be used this way again until the next dawn.

Liska fights with two of these daggers.

Liska is another of Graz’zt’s daughters, a deadly skulk assassin of great skill. Her first loyalty is to her own survival, then to her father. She defends the demon lord’s interests faithfully, using guile and subterfuge, and a cadre of male drow loyal to her. She doesn’t hesitate to put her own continued existence first if circumstances dictate it, though she immediately goes back to defending Graz’zt’s interests as soon as possible.

Liska’s cadre of drow warriors are unshakably loyal to her, giving their lives if need be. Liska takes her favored warriors as consorts, though her affection is fickle.

Liska is a slender, hairless humanoid with grey skin and elfin features. Being a skulk, she is able to change the color of her skin to match her surroundings, making detecting her extremely difficult. She wears minimal clothing so as to make the most of her camouflage abilities.