Pack Tactics.

The thug has advantage on an attack roll against a creature if at least one of the thug's allies is within 5 feet of the creature and the ally isn't incapacitated.

Actions

Multiattack.

The thug makes two melee attacks.

Mace.

Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: 5 (1d6 + 2) bludgeoning damage.

Heavy Crossbow.

Ranged Weapon Attack: +2 to hit, range 100/400 ft., one target. Hit: 5 (1d10) piercing damage.

Curse (Recharges After a Long Rest).

The Vistana targets one creature that it can see within 30 feet of it. The target must succeed on a DC 10 Wisdom saving throw or be cursed. The Vistana chooses the curse's effect from the options that follow; other Vistani curses are possible. All such effects deal psychic damage to the Vistani who uttered them when they end:

The target is unable to perform a certain kind of act involving fine motor control, such as tying knots, writing, playing an instrument, sewing, or casting spells that have somatic components. When this curse ends, the Vistana takes 1d6 psychic damage.
The target's appearance changes in a sinister yet purely cosmetic way. For example, the curse can place a scar on the target's face, turn the target's teeth into yellow fangs, or give the target bad breath. When this curse ends, the Vistana takes 1d6 psychic damage.
A nonmagical item in the target's possession (chosen by the DM) disappears and can't be found until the curse ends. The lost item can weigh no more than 1 pound. When this curse ends, the Vistana takes 1d6 psychic damage.
The target gains vulnerability to a damage type of the Vistana's choice. When this curse ends, the Vistana takes 3d6 psychic damage.
The target has disadvantage on ability checks and saving throws tied to one ability score of the Vistana's choice. When this curse ends, the Vistana takes 3d6 psychic damage.
The target's attunement to one magic item (chosen by the DM) ends, and the target can't attune to the chosen item until the curse ends. When this curse ends, the Vistana takes 5d6 psychic damage.
The target is blinded, deafened, or both. When this curse ends, the Vistana takes 5d6 psychic damage.

The curse lasts until ended with a greater restoration spell, a remove curse spell, or similar magic. It doesn't end when the target dies. If a cursed target is returned to life, the curse remains in effect.

Evil Eye (Recharges after a Short or Long Rest).

As an action, a Vistana can target a creature within 10 feet that the Vistana can see. This magical ability, which the Vistani call the Evil Eye, duplicates the duration and effect of the animal friendship, charm person, or hold person spell (Vistana's choice; spell DC 10), but requires neither somatic nor material components. If the target succeeds on the save, the Vistana is blinded until the end of the Vistana's next turn.

A Vistana who uses Evil Eye can't use it again before finishing a short or long rest. Once a target succeeds on a saving throw against a Vistana's Evil Eye, it is immune to the Evil Eye of all Vistani for 24 hours.

Vistana Thug