Hazvongel

Huge Fiend (Demon), typically Chaotic Evil
Armor Class: 17 (natural armor)
Hit Points: 237 (25d12 + 75)
Speed: 20 ft., fly 60 ft.
STR
21 (+5)
DEX
20 (+5)
CON
16 (+3)
INT
12 (+1)
WIS
15 (+2)
CHA
11 (+0)


Source: Vecna: Eve of Ruin