Dragon Sword
From Multiversal Omnipedia
The Dragon Sword was a mystical sword in a stone (obviously inspired by Arthurian legend) that rested in the forests beyond Megalith City. According to legend, the one who pulled the sword from the stone would be the hero who saved Megalith City from the Pastmaster. Although it was Razor who pulled the sword free quite by accident, it was T-Bone who actually used it to defeat the Pastmaster and his ferocious pet dragon, by tying the sword to a basic explosive missile, thus creating the Dragon Sword Missile. The sword's magical properties then caused the fearsome dragon to violently explode when the blade penetrated its hide.