Armor Class 15 (natural armor)
Hit Points 217 (14d20 + 70)
Speed 60 ft., climb 60 ft.
STR
25 (+7)
DEX
14 (+2)
CON
21 (+5)
INT
9 (-1)
WIS
16 (+3)
CHA
5 (-3)
Saving Throws Con +11, Wis +9
Skills Perception +9
Damage Resistances poison; bludgeoning, piercing, and slashing from nonmagical attacks
Condition Immunities charmed, frightened, poisoned
Senses darkvision 120 ft., passive Perception 19
Languages Giant, Undercommon
Challenge 17 (18000 XP)
Proficiency Bonus +6
Legendary Resistance (3/Day).
Magic Resistance.
Regeneration.
Multiattack.
Rend.
Fling Limb (3/Day).