Centaur Warlock

Dark One's Blessing. Whenever the centaur warlock reduces a hostile creature to 0 hit points, it gains 9 temporary hit points.

Charge. If the centaur moves at least 30 feet straight toward a target and then hits it with a pike attack on the same turn, the target takes an extra 10 (3d6) piercing damage.

Spellcasting. The Centaur Warlock is a 5th level spellcaster. Its spellcasting ability is Charisma (spell save DC 15, +7 to hit with spell attacks). The Centaur warlock has 3 spell slots, and can expend a spell slot to cast any spell it knows. The ghastly warlock knows the following warlock spells:

1st level: burning hands, Arms of Hadar, Hex
2nd level: , darkness, invisibility, scorching ray

Multiattack. The centaur makes two attacks: Two Cursed Greatsword attacks, or one Cursed Greatsword and one Hooves attack.

Sword of Maddness. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 11(2d6 + 4) slashing, plus 10 (3d6) necrotic damage. The Centaur can expend 2 charges (10 total), to cast crown of madness (DC 13) on the target. The target is then controlled by the devil prince in the sword.

Hooves. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 4) bludgeoning damage.