The M13 Dragon Armoured Battle System is a scaled up variant of the M9D Mantis Armour Defence System, which teams incredible defence, with heavy armaments and surprising agility. It was nicknamed 'Wanzer' (pronounced 'Vanzer'), a portmanteau of the German 'Wandern' and 'Panzer', coined by the development team at Beweglichkeitsrüstungsysteme. One of the heaviest pieces of UNSC armour, it is a tide turner, being capable of flattening whole armoured companies alone.