Y'demi

The AC of Y'demi includes her Constitution modifier while she isn't wearing armor or wielding a shield.

Y'demi wears an Oriq mask. While wearing the mask, Y'demi can't be targeted by any divination magic or perceived through magical scrying sensors, and she adds double her proficiency bonus to Charisma (Deception) checks (included above).

While Y'demi isn't blinded, she can see any creature that isn't an Undead or a Construct within 60 feet of itself, even through Cover, Vision and Light areas, invisibility, or any other phenomena that would prevent sight.

Y'demi makes two Blood Lash attacks.

Melee Spell Attack Roll: +9 to hit, reach 10 ft., one target. Hit: 21 (3d10 + 5) necrotic damage. If the target is a creature, it can't regain hit points until the start of the Y'demi's next turn.

Y'demi chooses a point within 150 feet of itself, and a 20-foot radius sphere centered on that point fills with a burst of searing, blood-red mist. Each creature of Y'demi's choice that she can see in that area must make a DC 17 Constitution saving throw. On a failed save, a creature takes 38 (7d10) necrotic damage and is incapacitated until the end of its next turn. On a success, a creature takes half as much damage and isn't incapacitated. A creature dies if reduced to 0 hit points by this necrotic damage.