Baron Fraqua of Wilberfore

Mimicry. the baron can mimic any sounds it has heard, including voices. A creature that hears the sound can tell that it is an imitation with a successful insight check of DC 17. The baron can create these sounds anywhere in a 10ft circle around itself.

Frail Bones. If the baron takes more than 20 bludgeoning damage in one hit it collapses and cannot move. It fails all dexterity checks and has disadvantage on strength checks.

Protective Wings. When the baron collapses, it's wings cover it's body, and it is immune to ranged attacks. The wings must be cut open for ranged attacks to hit with a hit against DC 10 from a slashing weapon. 

Summon guards. On a d8 roll of four or less, nothing happens. On a roll of five or more that many guards -4 are summoned to aid the baron, the baron can only use this when all previously summoned guards are dead.

Sceptre. Melee Weapon Attack: +6 to hit, reach 6 ft., 1 target. Hit: 12 (1d6 + 9) bludgeoning damage.