Ash

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

Multiattack. The owlbear makes two attacks: one with its beak and one with its claws.

Beak. Melee Weapon Attack: +4to hit, reach 5 ft., one creature. Hit: (1d4+ 4) piercing damage.

Claws. Melee Weapon Attack: +4to hit, reach 5 ft., one target. Hit:  (2d4 +4) slashing damage.

Maternal protection: If Luka is dropped to zero or below hit points, Ash will enter a rage, instinctively defending his adopted mother. If not incapacitated himself, he will receive advantage in all attack rolls, double all attack bonus and damage felt. Ash must move to within 5 feet of Luka and will not leave her side. This will last till Luka is revived.