Multiattack

The winter wolf makes two Bite attacks.

Bite

_Melee Weapon Attack:_ +5 to hit, reach 5 ft., one target. _Hit:_ 10 (2d6+3) piercing damage plus 4 (1d8) cold damage. If the target is a creature, it must succeed on a DC 13 STR save or be knocked prone.

Cold Breath (Recharge 5-6)

The winter wolf exhales a blast of freezing wind in a 15-foot cone. Each creature in that area must make a DC 13 DEX save, taking 18 (4d8) cold damage on a failed save, or half as much damage on a successful one.