Ghengis Kan killed millions over several decades, today we can do that in minutes with an atom bomb. The side with the super weapon is more powerful. If you want slow and galaxy-consuming, look at the flood from Halo. That is why the forerunner built the Halos to hit reset on the Galaxy. Sadly, some of the most beloved craft in sci-fi, like the Millennium Falcon and the USS , just don’t hold up to scientific scrutiny. However, that just makes the limited set of starships that do pass the feasibility test all the more impressive. SyFy. Rocinante Epstein drive. to showrunner Naren Shankar. Enchanted Hammers (Mjolnir, Stormbreaker, Thunderstrike, Manbreaker, Soulbreaker, Oceanbreaker, Worldbreaker, Faithbreaker, Stonebreaker, Willbreaker) A collection of Asgardian implements, with the most famous among them, Mjolnir, frequently brandished by Thor, those acting as Thor, and Thor-colleagues like Thunderstrike and Beta Ray Bill. 2. You want to use an electrothermal-chemical gun. The basic idea behind it is to improve the performance of chemical propellants by controlling the burn with a plasma charge. An ETC gun can achieve higher muzzle velocities than chemical-only propellants, using less electrical energy input as coilguns and railguns. To overmatch these systems anti tank weapons are now some of the most powerful systems on the battlefield, APDS-FS rounds travel at velocities of 1200m/sec or more, and HEAT warheads are so powerful that the secondary effects of the explosion are considered useful ways to eliminate enemy infantry or even light armour and improvised The Death Star's superlaser. 10. The Death Stars. Function: Planet-Destroying Laser. Built by: Galactic Empire. The most well-known superweapons, both of the Empire's Death Stars were ultimately destroyed by the Rebel Alliance, but their ability to fire planet-destroying lasers made them dominant military forces. RELATED: The Top 10 Most Destructive Sci-Fi Weapons. Whether out of Arthurian legend or a cartoon from the 80s, imbued with corrosive bloodlust or promising truth to all who wield it, fantasy books, movies, and television are full of incredible blades. Here are six of the coolest swords from all of fantasy fiction. Excalibur (Sword Art Online) A common theory states that Kirito does not use this sword because it is simply way too powerful. One of the few times he did take it out, the enemy got scared to TFDtLg.