Zelda Darknut

"The Darknut resembles a large knight, equipped with heavy armor and a large sword, and a wide shield. Darknuts are notoriously difficult to defeat, and are considered by many fans as the hardest non-boss/non-mini-boss enemy in games in which they appear. These foes share trite similarities to the Iron Knuckle, though there are a few discernible differences, one being the Gothic appearance of Darknut's armor as opposed to the somewhat Eastern appearance of the Iron Knuckle's armor. Apart from that, the two have never appeared in a game together. Additionally, since Ocarina of Time, Iron Knuckles have wielded two-handed axes while Darknuts prefer swords or maces." -Taken from the Zelda wiki