Owlbear Alpha
huge fey, chaotic neutral
Fey Ancestry: The owlbear is immune to charm and magic cannot put it to sleep.
Ambush Predator: The owlbear has advantage on Perception and initiative checks, and all its attacks during the first round in combat.
Actions
Multiattack: The owlbear can attack once with its bite or use its Piercing Shriek, and twice with its claws.
Bite: Melee weapon attack: +11 to hit, reach 5ft, one target. Hit: 17 (2d10+6) piercing damage, and the target must succeed on a Strength save (DC 19) or fall Prone.
Claw: Melee weapon attack: +11 to hit, reach 5ft, one target. Hit: 15 (2d8+6) slashing damage.
Piercing Trill (recharge 5-6): The owlbear screeches at a deafening volume. All creatures within 60 feet that can hear the owlbear must make a DC 16 Constitution saving throw or take 28 (8d6) force damage and be Stunned for 1 round.
Bonus Actions
Aggressive: The owlbear moves up to half its speed towards an enemy creature, and its jumping distance is doubled for this turn.