Multiattack. The guard makes two melee attacks.
Morningstar. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit:7 (1d8 + 3) piercing damage.
Unyielding. When the guard is subjected to an effect that would move it, knock it prone, or both, it can use its reaction to be neither moved nor knocked prone.
Black Earth guards are the warriors of the earth cult. They are brutal, heavily armored thugs devoted to Ogrémoch. That devotion has granted them an uncanny ability to hold their ground against the buffeting assaults. It has also earned them the right to wear special plate armor of elemental stone, which breaks down when the guard is slain.