Sky Hag (5e Creature)
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Medium fey, neutral evil
Innate Spellcasting. The hag's innate spellcasting ability is Charisma (spell save DC 14). She can innately cast the following spells, requiring no material components:
Multiattack. The hag makes two attacks: one with her beak and one with her talons.
Beak. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 7 (2d4 + 2) piercing damage.
Talons. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 9 (2d6 + 2) slashing damage.
Sky hags live far above the ground, often choosing to inhabit mountainous regions, though one could also be found in a towering building or in the boughs of a particularly massive tree. Sky hags have pale blue skin and bird-like beaks. A sky hag wears a robe made from feathers, called a feather robe at all times, only rarely removing it. While the hag wears her feather robe, she can transform herself into a raven, and ravens are naturally drawn to the area around a sky hag's lair.
Wings of Despair. Sky hags enjoy spreading fear wherever they go, be it as simple as picking someone up and dropping them from a great height in raven form or in more subtle, insidious ways.
Covens. A sky hag that is part of a coven (see the "Hag Covens" sidebar in the Monster Manual) has a challenge rating of 7 (2,900 XP).
Every sky hag has a feather robe. While the hag wears the robe, she can use an action to polymorph into a Large raven, or back to her true form. In raven form, the hag gains a flying speed of 60 feet, but otherwise, her statistics are the same in each form. Any equipment she is wearing or carrying isn't transformed, except for the feather robe, which fuses with her body. She reverts to her true form if she dies.