What is the zweihander sword?
Zweihanders (aka German greatsword) are long swords that are wielded with both hands and was mostly used in the 16th century. There are a flame-bladed Zweihander. However, it can be wielded with one hand.
Games and Anime that have the Zweihander in them
Dark Souls 3
Is a game that was released March 24, 2016. You can play using the Zweihander amount other weapons also you can wield it with one hand. The Zweihander can be found in other Dark Souls.
Final Fantasy XIV
The Zweihander shows up is in Final Fantasy XIV as well. it was released August 24, 2013.
Dark Knight Anibug