Blag the Butcher (Mutated Barbarian, Monster, Demonic)

Brutal Critical. When Blag rolls a critical hit, the strike deals an extra 20 (3d12) damage.

Dohrakk's Wrath. Blag rolls a critical hit with attack rolls on a 19 or 20, and he cannot be disarmed of Dohrakk's Ire. Additionally, when Blag rolls a critical hit, Dohrakk's Ire becomes enraged with bloodlust, fully merging to Blag's body as a bloated amalgamation of axe, flesh, and bone. For 1 minute, all attacks made with Dohrakk's Ire deal an extra 6 (1d12) slashing damage.

Feral Instinct. If Blag isn't unconscious, he can't be surprised and has advantage on initiative rolls. 

Rage. Blag can enter a rage as bonus action. While raging, Blag gains the following benefits:

• When Blag makes a melee weapon attack using Strength, he gain a (+4) bonus to the damage roll.
• Blag gains resistance to all bludgeoning, piercing, and slashing damage.

Rage lasts for 1 minute and only ends if Blag becomes unconscious.

Rampage. When Blag reduces a creature to 0 hit points with a melee attack on his turn, Blag can take a bonus action to move up to half his speed and make an attack.

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

Incredible Might. The minimum Blag can roll on Strength check is 24.