the helmet

This object was the prize for winning the 4 way Challenge of the Wizards between Chom, Mazem, Skorpos, and Sholow. The helmet augmented the power of any wizard who wore it. Sholow blackmailed Thundarr into obtaining the relic for him, but tried to kill Thundarr instead of honoring their bargain as soon as he had the helmet. The helmet's power could not affect anything made of silver. This weakness was quickly exploited by Ariel to allow Thundarr to damage the helmet. Sholow tried to use the damaged helmet to destroy Thundarr, but the resulting backlash of magic chanelled through it caused Sholow's own power to imprison him inside of a slot machine in his palace, where he remains to this day--imprisoned forever.