Belgabad the Devourer

Reckless. At the start of its turn, the berserker can gain advantage on all melee weapon attack rolls during that turn, but attack rolls against it have advantage until the start of its next turn.

Intimidating Presence. Any creature within 15 ft. of Belgabad must make a DC 16 Wisdom saving throw or be frightened until the end of Belgabad's next turn.

Berserker Rage. As an action, Belgabad can enter a raging state for 1 minute. He has advantage on Constitution and Strength checks and saving throws, +6 melee damage with his Great Khopesh. The rage ends if Belgabad is killed or if his turn ends and he hasn’t attacked a hostile creature since his last turn or taken damage since then.

Multiattack. Belgabad can make 3 attacks per turn, 2 with the Great Khopesh and one with the Obsidian Spear or the Javelin. He can switch one attack with his breath weapon.

Great Khopesh of the Serpent. Melee Weapon Attack: +12 to hit, range 5 ft., one target. Hit: 26 (4d10+12) slashing damage. The target must also succeed on a DC 16 Constitution saving throw or take 4d6 poison damage and be poisoned for the next 24 hours.

Obsidian Spear of Set. Melee Weapon Attack: +9 to hit, range 20-60 ft., one target. Hit: 20 (3d8+8) piercing damage and (3d8) necrotic damage.

Javelin. (x6) Melee Weapon Attack: +9 to hit, range 30-120 ft. one target. Hit: 16 (3d6+6) piercing damage.

Lightning Breath. (3 times/day) Ranged Magic Attack: Exhale a 5 by 40 ft. line for 27 (6d8) lightning damage or half as much on a successful DC 16 Dexterity saving throw.