Unusual Nature. The Snowman doesn’t require air, food, drink, or sleep.

False Appearance. While motionless, the Snowman appears to be a normal Snowman and gains advantage on stealth and deception rolls. 

Multiattack: The Snowman makes two attacks each turn, and takes a legendary action once per round if able. 

Claws. Melee Weapon Attack: +14 to hit, reach 5 ft., one target. Hit: 17 (4d6 + 8) slashing damage plus 8 (2d8 + 6) cold damage.

Snowball. Ranged Weapon Attack: +14 to hit, range 15/90 ft., one target. Hit: 17 (4d6 + 8) bludgeoning damage plus 8 (2d8 + 6) cold damage.

Stuffing. The Snowman stuffs snow into itself and regains 2d12 + 8 hit points. Roll a d8; on a 1 or 2, the Snowman runs out of stuffing and must spend 8 hours foraging for more before it can use this action again.

Unsettling Presence (Recharge 6). The Snowman targets one creature it can see within 15 feet of it. The target must succeed on a DC 18 Wisdom saving throw or be magically frightened until the end of its next turn.

Breath Weapon (Recharge 5–6). The Abominable Snowman exhales a blast of energy in a 30-foot cone. Each creature in that area must make a DC 18 Dexterity saving throw. On a failed save, the creature takes 22 (4d12 + 6) cold damage. On a successful save, the creature takes half as much damage.

Animate Golem (2 Actions): On round 3, the Abominable Snowman animates a nearby Icite Golem.