Arctic Owlbear

Keen Sight and Smell. The owlbear has advantage on Wisdom (Perception) checks that rely on sight or smell.

White As Snow. The Arctic Owlbear has advantage on stealth checks when in a snow based environment.

Multiattack. The owlbear makes two attacks: one with its beak and one with its claws. Or, the owlbear may throw two Large Snowballs.

Beak. Melee Weapon Attack: +7 to hit, reach 5 ft., one creature. Hit: 10 (1d10 + 5) piercing damage.

Claws. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 14 (2d8 + 5) slashing damage.

Large Snowball with a Rock inside. Ranged Weapon Attack: +6 to hit, range 60/240 ft., one target. Hit: 18 (3d10 + 6)bludgeoning damage. If the target is a creature, it must succeed on a DC 17 dexterity saving throw or become stunned and knocked prone, being buried under the light mound of snow.