Armor Class 15 (natural armor)
Hit Points 58 (9d8 + 18)
Speed 30 ft., fly 40 ft.
Saving Throws DEX +6, WIS +6
Skills Perception +6, Stealth +6
Damage Resistances cold, [object Object]
Damage Immunities acid, fire, poison
Condition Immunities poisoned
Senses darkvision 120 ft., passive Perception 16
Languages Draconic, Infernal, telepathy 120 ft.
Challenge 7
Devil's Sight. Magical darkness doesn't impede the abishai's darkvision.
Magic Resistance. The abishai has advantage on saving throws against spells and other magical effects.
Magic Weapons. The abishai's weapon attacks are magical.
Shadow Stealth. While in dim light or darkness, the abishai can take the Hide action as a bonus action.
Multiattack. The abishai makes three attacks: two with its scimitar and one with its bite.
Scimitar. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 6 (1d6 + 3) slashing damage.
Bite. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 8 (1d10 + 3) piercing damage plus 9 (2d8) acid damage.
Creeping Darkness (Recharge 5–6). The abishai casts darkness at a point within 120 feet of it, requiring no components. Wisdom is its spellcasting ability for this spell. While the spell persists, the abishai can move the area of darkness up to 60 feet as a bonus action.
Mordenkainen's Tome of Foes, p. 160