Warlock of the Hexblade

Innate Spellcasting. The warlock’s innate spellcasting ability is Charisma. It can innately cast the following spells (spell save DC 16), requiring no material components:

At will: detect magic, silent image, speak with dead

1/day each: power word: pain, circle of death

Spellcasting. The warlock is a 14th-level spellcaster. Its spellcasting ability is Charisma (spell save DC 16, +8 to hit with spell attacks). It regains its expended spell slots when it finishes a short or long rest. It knows the following warlock spells:

Cantrips (at will): chill touch, eldritch blast, sword burst, minor illusion.

1st–5th level (3 5th-level slots): armor of Agathys, staggering smite, shadow of Moil, cone of cold, phantasmal killer, elemental weapon, dimension door, shield, summon shadowspawn, banishing smite, counterspell

Multiattack. The warlock makes two attacks with it's hex sword.

Hex Sword. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 13 (1d8 + 5) slashing damage plus 4 necrotic damage, or 14 (1d10 + 5) slashing damage plus 4 necrotic damage if used with two hands.

Hexblade's Curse (Recharges after a Short or Long Rest). The warlock curses one creature it can see within 30 feet of it. For the next minute, all attacks the warlock makes against the cursed creature count as a critical hit on a roll of 19 or 20 on the d20 and deal an additional 4 damage. Additionally, if the target dies while affected by this ability, the warlock regains 18 hit points.