Valignat, Champion of Lazacathar'imm

Rage

• Valignat has advantage on Strength checks and Strength saving throws.
• When Valignat makes a melee weapon attack using Strength, he gains a +4 bonus to the damage roll. 
• Valignat has resistance to bludgeoning, piercing, and slashing damage.

Unarmored defense. see armor class

Danger sense. Valignat has advantage on dexterity saving throws against effects he can see, he also cannot be blinded, deafened, or incapacitated

Reckless attack. on Valignat's first turn, he may decide to attack recklessly, giving his next attack advantage 

Path of the beast. Valignat's barbarian path gives him the following abilities: 

• his tail, claws, or teeth grow longer and sharper, dealing 2d10 slashing damage, this becomes an available attack when Valignat rages
• Valignat has a climbing speed equal to his running speed, and he can jump up to 30 feet in a direction as a bonus action, this does not provoke opportunity attacks
• target creature makes a dc 22 wisdom saving throw, the creature either attacks it's nearest ally, or takes 4d12 psychic damage, Valignat's choice
• as an action, Valignat can summon 20 white wisps around his head, he gains 100 temporary hitpoints and his next attack deals 6d6 extra radiant damage

Extra attack. Valignat can attack up to 3 times on his turn

Brutal critical (5 dice)

Relentless rage. While raging, Valignat can choose to be at 25 health instead of 0 health 5 times between long rests

Spellcasting. Valignat is a 20th-level spellcaster. his spellcasting ability is 20 (spell save DC 22, +7 to hit with spell attacks). Valignat has following sorcerer spells prepared:
Cantrips (at will): fire bolt, greenflame blade

1st level (4 slots): burning hands, hellish rebuke

2nd level (3 slots): heat metal, dragon's breath

3rd level (3 slots): fireball, flame arrows

4th level (3 slots): fire shield, wall of fire

5th level (3 slots): flame strike, immolation

6th level (3 slots): investiture of flame, sunbeam

7th level (3 slots): delayed blast fireball, firestorm

8th level (3 slots): sunburst, illusory dragon

9th level (3 slots): power word kill, blade of disaster

Dragon's roar. all of Valignat's enemies become frightened

Godslayer's Firebrand. Melee Weapon Attack: +20 to hit, reach 10 ft., 1 target. Hit: 67 (10d10 + 12) slashing damage + 55(10d10) fire damage. 

Savage tail. Melee Weapon Attack: +15 to hit, reach 10 ft., 1 target. Hit: 48 (9d8 + 12) bludgeoning damage. 

Breath of Imix. RangedWeapon Attack: +22 to hit, range 200/300 ft., all targets within a 300ft cone. Hit: 145 (20d10 + 40) fire damage + 47 (6d10 + 12) radiant damage. recharge 4

Unprovoked opportunity. 5 times per long rest, Valignat can make an opportunity attack as a reaction to being hit by an enemy.

Valignat has only one mythic action, and can use it once per long rest, he can only use this action once he falls unconscious.

Dead god's retribution (Costs 1 Action). When Valignat uses this action, he restores from unconsciousness with full health and 100 temporary hitpoints, his next 3 attacks are automatically criticals.