A Knight is an armored enemy first seen in Power Master 1: A Strange Journey.
Power Master 1: A Strange Journey
Knights are found in Kora Fortress and the area next to Moneo during the quest Long-time Lost. The card info states that the Knights are undead and hold loyalties to a particular person or family. Their sprite is a recolored version of Silver Knight's with a different colored shield and strap. They attack with Swords and know the Pierce skill, and have no strengths or weaknesses.
An undead soldier whose loyalty continues even in death.