Undead Fortitude. If damage reduces the zombie to 0 hit points, it must make a Constitution saving throw with a DC of 5 + the damage taken, unless the damage is radiant or from a critical hit. On a success, the zombie drops to 1 hit point instead.

Reckless Attack: The brute can attack recklessly on its turn, giving it advantage on melee weapon attack rolls, but attacks against it have advantage until the start of its next turn.

Hammer Fist: Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 17 (3d8 + 4) bludgeoning damage.

Ground Slam (Recharge 5–6): The brute slams the ground, creating a shockwave. Each creature within 10 feet must make a DC 14 Dexterity saving throw or be knocked prone and take 2d8 bludgeoning damage.