Flyby. The owl of owls doesn't provoke opportunity attacks when it flies out of an enemy's reach. Keen Hearing and Sight. The owl has advantage on Wisdom (Perception) checks that rely on hearing or sight.
Multiattack. The owl of owls makes two attacks: one with its talons, and one with its beak. When its pellet of Owls is available, it can use its pellet in place of its beak. Talons. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 4) slashing damage. Beak. Melee Weapon Attack: + 7 to hit, reach 5 ft., one target. Hit: 13 (3d4 + 6) piercing damage. Pellet of Owls (Recharge 5-6). The owl of owls raises it's head and shoots out a pellet of owls at a target, the target must make a DC 15 Dexterity saving throw, taking 10 (3d6) bludgeoning damage on a failed save, or none on a successful one. Summons 1d6 greater owls, these owls take their turn after the owl of owls and count as being surprised for one round.
A large owl that towers over you, it has a large torso with a wingspan of a small boat. It has a piercing sharp beak, just like it's gaze. There's a barley visible magic force woven around it's body, protecting this monstrosity.
Found in the Feywilds, Magic corruption and in large mountain or forested areas.