Energon

Energon was a mineral in The New Adventures of He-Man.

Energon was the most destructive material in the universe. Once activated, it devoured everything it touched and could consume entire planets. It could only be destroyed by an energy as evil as it's own.

Skeletor discovered the secret to creating Energon inscribed as a riddle in an alien computer aboard the Intergalactic Foundation Space Station and on a suggestion by Flogg, tricked the Scientists of Primus into solving the equation.

The New Adventures of He-Man

 * Crack in the World