Armor Class 14 (natural armor)
Hit Points 280 (16d20 + 112)
Speed 60 ft.
STR
24 (+7)
DEX
9 (-1)
CON
24 (+7)
INT
6 (-2)
WIS
10 (+0)
CHA
5 (-3)
Damage Immunities lightning, poison, psychic; bludgeoning, piercing, and slashing from nonmagical attacks
Condition Immunities charmed, exhaustion, frightened, paralyzed, petrified, poisoned
Senses darkvision 120 ft., passive Perception 10
Languages understands Giant but can't speak
Challenge 20 (25000 XP)
Proficiency Bonus +6
Berserk.
Immutable Form.
Magic Resistance.
Siege Monster.
Multiattack.
Fist.
Elemental Breath (Recharge 5–6).
Bite.