Eldritch Resilience. Abboth the Enslaver  has advantage on saving throws against poison, spells, and illusions, as well as to resist being charmed or paralyzed.

Multiattack. Abboth makes two melee attacks. It can replace one of those attacks with a use of Mind Mastery.

Whip. Abboth can make a melee attack against a creature it can see. +3 to hit, Range 10 ft, Hit: 5 (1d4+3) slashing damage.

Mind Mastery. Abboth the Enslaver targets one creature it can see within 60 feet of it. The target must succeed on a DC 12 Intelligence saving throw, or he causes it to use its reaction either to make one weapon attack against another creature Abboth can see or to move up to 10 feet in a direction of his choice. Creatures that can’t be charmed are immune to this effect.

Consume. Abboth the Enslaver can use an action to absorb Hit points from a creature he commands. Range 60 ft, Hit: 1d8+2.

Kill Command. (1/day). Once per Combat, Abboth the Enslaver can use a an action to command the pack he commands to swarm one target. Each monster commanded loses 1d4+2 hit points.