Coal Bearstrong

Rage 4 Uses.

Reckless attack Gain advantage on all attacks, but all attacks against Coal have advantage.

Danger sense Coal has advantage on visible DEX saves unless blinded, deafened, or stunned.

Extra attack

Feral instinct Gain advantage on initiative rolls. Also if not incapacitated when surprised, you can act normally if the first thing you do is activate rage.

Storm aura As a bonus action activate desert aura, and every creature with 10ft takes 3 fire damage. Don't suffer from extreme heat, and as an action catch a flammable object on fire.

Duergar resilience Coal has advantage against getting charmed, paralyzed, poison, and illusion saving throws.

Stonecunning Add double Coal's proficiency to history checks to do with stone work

Great weapon master Once per a turn if you get a critical hit, or reduce a creature to 0 HP with a melee weapon, you can make another melee attack as a bonus action. Before making an attack with a  heavy weapon, you can take a -5 penalty to attack roll and on a hit deal 10 extra damage.

Innate spellcasting  Cast enlarge on yourself, and invisibility on yourself once each. Recover these spells after a rest. 

Maul 8 2D6+5 bludgeoning 

Handaxe 8 1D6+5 slashing 20/60

Hand crossbow 6 1D10+3 100/400