Multiattack : Salah-Khan can make three attacks with his glaive or two attacks with his longbow as an action.

Glaive +2 : Weapon Attack: + 13 to hit, reach 5 ft., one target. Hit: 2d10 + 8 slashing damage plus 4d4 + 8 poison damage.

Longbow +2 : Weapon Attack: + 13 to hit, range 150/600 ft., one target. Hit: 2d8 + 8 piercing damage

Breath Weapon : As an action, Salah-Khan can exhale destructive energy. When he uses his breath weapon, each creature in the area of the exhalation must make a Dexterity saving throw. The DC for this saving throw equals 20. A creature takes 10d6 poison damage on a failed save, and half as much damage on a successful one. Distance : 15 ft. cone. Each turn, roll a d6. On a 4, 5 or 6 Salah-Khan gains the ability to recast this spell.

Misty step (3/short rest) : As a bonus action, Salah-Khan teleports up to 30 feet to an unoccupied space that he can see.

Cloudkill (3/long rest) (concentration) : Salah-Khan creates a 20-foot-radius sphere of poisonous, yellow-green fog centered on a point he chooses within range. The fog spreads around corners. It lasts for the duration or until strong wind disperses the fog, ending the spell. Its area is heavily obscured. When a creature enters the spell's area for the first time on a turn or starts its turn there, that creature must make a Constitution saving throw. The creature takes 7d8 poison damage on a failed save, or half as much damage on a successful one. Creatures are affected even if they hold their breath or don't need to breathe. The fog moves 10 feet away from him at the start of each of his turns, rolling along the surface of the ground. The vapors, being heavier than air, sink to the lowest level of the land, even pouring down openings.

Infestation : Salah-Khan causes a cloud of mites, fleas, and other parasites to appear momentarily on one creature he can see within 30 feet. The target must succeed on a Constitution saving throw, or takes 5d6 poison damage and moves 5 feet in a random direction if it can move and its speed is at least 5 feet. Roll a d4 for the direction: 1, north; 2, south; 3, east; or 4, west. This movement doesn't provoke opportunity attacks, and if the direction rolled is blocked, the target doesn't move.

Legendary Resistance (2/Day) : If Salah-Khan fails a saving throw, he can choose to succeed instead

Salah-Khan can take 3 legendary actions, choosing from the options below. Only one legendary action can be used at a time and only at the end of another creature's turn. Salah-Khan regains spent legendary actions at the start of its turn.

Glaive +2 : Weapon Attack: + 13 to hit, reach 5 ft., one target. Hit: 2d10 + 8 slashing damage plus 4d4 + 8 poison damage.

Longbow +2 : Weapon Attack: + 13 to hit, range 150/600 ft., one target. Hit: 2d8 + 8 piercing damage

Swarm of flies (costs 2 actions) : Salah-Khan releases a swarm of flies on a creature that's 10 ft. from him. That creature must succeed a Constitution saving throw (DC 20) or take 6d4 poison damage and be poisoned. He can also command the swarm of flies to protect him to gain 10 temporary hit points until the end of turn. If the swarm of flies was protecting him when he releases it on another creature, he loses the temporary hit points.