Armor Class 19 (natural armor)
Hit Points 682 (35d20 + 315)
Speed 40 ft., fly 60 ft. (hover), swim 60 ft.
STR
30 (+10)
DEX
14 (+2)
CON
29 (+9)
INT
16 (+3)
WIS
23 (+6)
CHA
18 (+4)
Damage Resistances cold, fire, thunder; bludgeoning, piercing, and slashing from nonmagical attacks
Damage Immunities lightning, poison
Condition Immunities exhaustion, grappled, paralyzed, petrified, poisoned, prone, restrained, stunned
Senses passive Perception 16
Languages Giant, Primordial
Challenge 27 (105000 XP)
Proficiency Bonus +8
Awakening of the Scion.
Legendary Resistance (5/Day).
Magic Resistance.
Siege Monster.
Multiattack.
Slam.
Spit Hailstone.
Lightning Barrage (Recharge 5–6).
Booming Step.