unique ce small aberration air 

Female will-o'-wisp spy

Perception +21; darkvision

Languages Aklo, Common, Infernal, Undercommon

Skills Acrobatics +19, Deception +17, Intimidation +17, Religion +19, Stealth +19

Str -5 Dex +6 Con +0 Int +3 Wis +6 Cha +4

AC  30; Fort +16, Ref +18, Will +20

HP 80; Immunities magic

Glow (aura, light) 20 feet. Stekraegrian is naturally invisible but glows with a sickly green light, casting bright light in the aura and making her visible.

Magic Immunity Stekraegrian is immune to all spells except faerie fire, glitterdust, magic missile, and maze.

Speed fly 50 feet

Melee [>] shock +21 (electricity, magical), Damage 2d8+8 electricity

Divine Prepared Spells DC 28, attack +20; 4th crisis of faith, dispel magic, divine wrath, read omens; 3rd blindness, chilling darkness, fear (×2); 2nd augury, darkness, grim tendrils, see invisibility; 1st bane, fear, ray of enfeeblement, sanctuary; Cantrips (4th) chill touch, daze, divine lance, prestidigitation, sigil

Feed on Magic [>] (concentrate) As spellvoid (page 62), but DC 28.

Go Dark [>] (concentrate) Stekraegrian extinguishes her glow, becoming invisible. She can end this effect with another use of this action. If she uses her shock attack while invisible, the arc of electricity lets any observer determine her location, making Stekraegrian hidden to observers only until she moves.

Abomination Vaults #2: Hands of the Devil, page 57.