Master-at-Arms is a boss exclusively appearing in Chrono Trigger (DS) that appears in the Lost Sanctum. The Master-of-Arms is the vengeful spirit of a deceased swordsman who detests all living things. He fights together with the Bladesman, acting as the main attacker while the Bladesman serves as his support, providing First-Aid to heal HP whenever the Master-at-Arms takes damage. The Master-at-Arms uses a variety of powerful physical attacks, Light elemental magic attacks, and counters. When the Bladesman is defeated, the Master-at-Arms's attacks will become even more potent.