Black Guards are stronger than the Blue Guards and Green Guards, possessing more health and attack power than them. They always carry shields, preventing them from being attacked in the front unless Cadence, Link, Yves, or Zelda is wearing the Ring of Piercing, or uses the Great Bow or Fragarach. They always move to the beat of the music, and share their movement pattern with other guards by preferring to move in the shape of a circle on every other beat, always crouching for one beat before hopping to an adjacent tile on the second beat.
However, if their path is blocked off by an object or enemy on a beat, they will hop away in the opposite direction on the next beat without crouching, then resume their normal beat pattern for two beats, crouching and then hopping away one more time before attempting to form another circle. When they see any of the heroes, they will become aggressive and chase them with their swords.