Armor Class 22 (natural armor)
Hit Points 432 (32d10 + 256)
Speed 40 ft., fly 30 ft.
Saving Throws INT +12, WIS +10, CHA +12
Skills Insight +10, Intimidation +12, Perception +10
Damage Resistances thunder, [object Object]
Damage Immunities poison
Condition Immunities charmed, frightened, paralyzed, poisoned, unconscious
Senses darkvision 60 ft., passive Perception 20
Languages all but rarely speaks
Challenge 25
Immutable Form. The marut is immune to any spell or effect that would alter its form.
Legendary Resistance (3/Day). If the marut fails a saving throw, it can choose to succeed instead.
Magic Resistance. The marut has advantage on saving throws against spells and other magical effects.
Unusual Nature. The marut doesn't require air, food, drink, or sleep.
Multiattack. The marut makes two Unerring Slam attacks.
Unerring Slam. Melee Weapon Attack: automatic hit, reach 5 ft., one target. Hit: 60 force damage, and the target is pushed up to 5 feet away from the marut if it is Huge or smaller.
Blazing Edict (Recharge 5–6). Arcane energy emanates from the marut's chest in a 60-foot cube. Every creature in that area takes 45 radiant damage. Each creature that takes any of this damage must succeed on a DC 20 Wisdom saving throw or be stunned until the end of the marut's next turn.
Mordenkainen Presents: Monsters of the Multiverse, p. 173