Ardivik the Godbreaker

I shall not fear. Ardivik is immune to frightened. 

Reflective Enchantments: Any time Ardivik the Scarred is targeted by a Magic Missile spell, a line spell, or a spell that requires a ranged Attack roll, roll a d6. On a 1 to 5, Ardivik  the Scarred is unaffected. On a 6, Ardivik is unaffected, and the effect is reflected back at the caster as though it originated from Ardivik, turning the caster into the target.

Blink (12/day). Ardivik the Scarred may instead of taking an action or moving, teleport 2d6 feet in any direction at will. If and only if his new location gives him advantage on an attack, he may use Multiattack. Otherwise he may only move up to half his normal speed in any direction for one minute after each blink.

Legendary Resistance (5/Day): If Ardivik the Scarred fails a saving throw, he can choose to succeed instead.

Superior Spellcasting.  

Ardivik can caste spells from any class innately, at 11th level. This does not include spells requiring devotion to specific deities, pacts with specific beings, wild magic, or magic specific to monks

Multiattack. Ardivik makes two melee attacks.

Blade of Man. Melee Weapon Attack: +25 to hit, reach 8 ft., one target. Hit:  64 (8d8+20) slashing damage.

Bend thy knee! (Recharges after a Short or Long Rest). For 10 minutes a targeted hostile creature who does not have a 20 in both strength and constitution is incapacitated. This affect ends if Ardivik is distracted.

Unbreakable. Ardivik adds 30 to his AC against one melee attack that would hit him. To do so, he must see the attacker and be wielding a melee weapon.

 Defy the gods. Ardivik is immune to the affect of smite and any attack imbued with smite is instead treated as a non smiting version of the attack.

Lay waste. If Ardivik the Scarred takes more than 60 damage in one turn, he may cast disintegrate without preparation at it's highest level on a single target. After casting disintegrate, Ardivik the Scarred gains vulnerability to all physical attack types but retains all magical resistances.

Bloodthirst. Ardivik the Scarred may use Barbarian Rage as If he were a 20th level barbarian, but may still cast spells.

The will of the Godbreaker.

Ardivik may use all his remaining actions in a turn to begin channeling a Greater Wish. this action takes six turns to complete and is nullified if interrupted. While channeling, Ardivik loses all inherent and artificial resistances, and must stand completely still.