Multiattack

The wendigo makes three attacks: two with its icy claw and one with its bite. Alternatively, it uses its Frozen Spittle twice.

Icy Claw

Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 12 (2d6 + 5) slashing damage and 14 (4d6) cold damage.

Bite

Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 14 (2d8 + 5) piercing damage.

Frozen Spittle

Ranged Spell Attack: +7 to hit, range 100 ft., one target. Hit: 28 (8d6) cold damage, and the target must succeed on a DC 16 Dexterity saving throw or be restrained until the end of its next turn.