He-Man and the Masters of the Universe (1983)

S1E53 Return of the Gryphon

In the village of Chander, Trap Jaw and Beast Man infiltrate the Shrine of the Gryphon to snatch the precious Gryphon jewel, hiding it within the grounds of the Royal Palace. According to legend, 200 years ago, the Gryphon—a massive fire-breathing dragon with a lion's head—entrusted the people of Chander with the jewel, threatening devastation if it were ever lost. The wicked duo hopes to incite the Gryphon's wrath upon the Royal Palace. However, a young page named Thad, feeling invisible to everyone, stumbles upon the hidden jewel. Believing it gives him significance, he refuses to give it up, inadvertently summoning the Gryphon's fury as it rampages in search of the jewel.