Eternal K/Night

Arthur King, also known as Eternal K/Night, is a Bronze Age superhero known for founding The Round Table.

Powers
Arthur's superpower is directly linked to his wielding of Excalibur, which grants him superhuman strength, dexterity, and toughness while holding it, in addition to it being a very large sword. The sword establishes a telepathic link between himself and The Lady of The Lake, who assists him in battle with strategy.

Personal Life
Before becoming a Bronze age hero Arthur worked as a manager [...] In 2001 Arthur married Gwen and Lance, with all three of them changing their names to King.