Carock

Carock (カロック Karokku) is a boss featured in The Adventure of Link. Essentially a large Wizzar, this boss guards the Maze Island Palace, and can be defeated only by using the Reflect Spell to turn his own magic attacks against him.

Theory
Carock bears an uncanny resemblance to the Magician who tricked the Prince and placed Princess Zelda under the spell. The manual says that the magician died after completing the spell. It is possible that the magician and Carock originate from the same clan of magicians.