Mace-Axe-Sword

The Mace-Axe-Sword is a theoretical weapon invented by Snotlout in the Dragons: Race to the Edge, Season 6 episode, "Darkest Night".

History
While Hiccup is dealing with the injury of his father, the other Riders tell stories about what Berk would be like if they had never left to go to Dragon's Edge. In Snotlout's tale, he started off as a "Weapons Tester" and would have been promoted to "Weapons Inventor". He would create the greatest weapon ever - the Mace-Axe-Sword. In his tale, he was also the awe of the village, and Gobber revered him and his weapon.

Physical Appearance
The Mace-Axe-Sword is a large weapon, as tall as or taller than Snotlout himself. It starts with a spear-tipped hilt, then becomes a jagged-edge sword. Midway along the blade is a double-headed axe. It terminates in another asymmetrical double-headed axe with a spiky mace in the middle.