Advantages: The Zweihänder can be used as a sword or spear. This weapon was meant for spinning to gain momentum. The Zweihänder was also made to be able to take down spear formations in a safe range. The Zweihänder has two crossguards which means that if you have it in sword or spear grip, your hands will still be safe! The Zweihänder also is very long which mean you can attack your foes from a distance!
P.S: it’s also very cool looking