There's a rumor she starts at level 90.

Arcane: Beast
Base Rarity: Epic
Troop Type: Daemon, Rogue
Troop Role: Assassin
Troop Id: K21_07 / 6269
Max skills: 21    29    7    5
Kingdom: Blighted Lands
Kingdom Id: 3021
Trait #1: Daemon Slayer
Deal double Skull damage vs. Daemons.
Trait #2: Stealthy
Cannot be targeted by spells (unless there are no other targets).
Trait #3: Armor Piercing
50% chance to ignore Armor with Skull damage.
Spell: Spite and Malice
Description: Deal [Magic + 2] true damage to an enemy. Deal double damage if they use Yellow Mana. Gain an extra turn if they are a Daemon.
Mana Color: Green, Red
Mana Cost: 13
Spell Id: 7415