Here are her 2nd ed. stats (from the Dancing Hut of Baba Yaga)
They give her stats as if she were a monster, which may be appropriate, I don't know...
25th level wizard, 12th level priest, 10th level thief (sort of)
Alignment: NE
AC -4
Movement: 12
hp: 150
Thac0: 3
No. of attacks: 3
Damage/Attack: 4d4+9 (claw x2) / 2d10+9 (bite)
special attacks: fear aura; poison; aging; spells
special defenses: +1 or better weapons to hit, non-metal weapon to hit when inside hut; regeneration; immunities to poison, fire, and cold; spells
magic resistance: 75%
str 21
dex 18
con 22
int 25
wis 23
char 5
There are literally 3 pages that describe all her special abilities. Some of the key ones:
psionic wild talent of mind blank (power score of 16) - active at all times (even when sleeping)
infravision
magically enhanced sense of smell
feed upon spirites (sort of like a death knell, except she uses it on corpses, and they are unable to be raised
immunity to : chaos, charm monster/person, command, confusion, emotion, fear, feeblemind, forget, friends, fumble, hold monster/person, hypnotism, magic jar, quest, ray of enfeeblement, scare, suggestion, illusions of 7th level or less
A number of rogue-like abilities at 10th level of ability.