AU-Sekhmet (The Fallen)

Adamantine Armor. If Sekhmet is hit by a critical hit from a hostile creature while wearing this armor, the critical hit becomes a normal hit.

Aura of Hate. While Sekhmet isn’t incapacitated, she and all fiends and undead within 30 feet of her deal 5 extra damage whenever they hit with a melee weapon attack (already factored into Sekhmet's attacks). This extra damage is of the same type as the weapon’s damage type.

Magic Weapons. All of Sekhmet's weapons are magical.

Spellcasting. Sekhmet's spellcasting ability is Charisma (spell save DC 19, +11 to hit with spell attacks). Sekhmet can cast the following spells:

6/day total: banishment, death ward, destructive wave (necrotic), spirit shroud (necrotic), staggering smite
2/day each: cure wounds (at 2nd-level), shield of faith, thunderous smite
1/day each: destructive wave, hold monster, 

Multiattack. Sekhmet makes two attacks.

Anti-Light Blade (Longsword). Melee Weapon Attack: +12 to hit, reach 5 ft., 1 target. Hit: 15 (4d8 + 9) necrotic damage one-handed or (4d10 +9) necrotic damage two-handed.

Javelin. RangedWeapon Attack: +9 to hit, range 30/120 ft., 1 target. Hit: 7 (1d6 + 9) piercing damage plus 8 (2d8) necrotic damage.

Dread Lord. Sekhmet surrounds herself with a 30-ft. aura of gloom for 1 minute, reducing any bright light within the aura to dim light.  Whenever a creature that is frightened of Sekhmet starts its turn in the aura, it takes 4d10 psychic damage.  Creatures that rely on sight have disadvantage on attack rolls against creatures within the aura.

Dread Lord Shadow Attack (Dread Lord must be active).  Melee Spell Attack. +11 to hit. Reach 5 ft.,  1 target. Hit: 3d10+5 necrotic damage.

Hellish Rebuke (2nd Level Spell; 3/Day).  When Sekhmet is damaged by a creature within 60 feet of her that she can see, the creature that damaged her must make a DC 19 Dexterity saving throw, taking 16 (3d10) fire damage on a failed save, or half as much damage on a successful one.