He-Man and the Masters of the Universe (2002) Season 1 Episode 15
After receiving a distressing vision, the Sorceress sends Prince Adam and Man-At-Arms to the small island of Anwat Gar to retrieve the Legacy Stones, which are ancient artifacts of great power. However, the pair discovers Sy-Klone, protector of the Legacy Stones, and is soon engaged in combat with the mighty warrior. The battle is interrupted when Skeletor arrives and gains the power of the Legacy Stone!
Episode Title: The Mystery of Anwat Gar
Air Date: 2002-12-20