This character uses a greatsword.
A greatsword is referenced today mostly as an extremely large or powerful weapon, like the zweihänder, in comparison with less sizable weapons, such as the longsword or claymore.
These weapons fall between the line of the 16th century two-handed swords wielded by the landsknecht and the shorter arming sword of the knights and the spatha of the Romans and Vikings. The greatsword, and perhaps longswords in this manner, were not a form of "specialized weapon" as much as they were "outsize(d) specimens". Indeed, the weapons were referred to by a variety of names none of which, however, related to espée deuz mains, or twahandswerd, both meaning the huge Renaissance two-handed sword. Instead, the weapons were referred to as simply notably large weapons as in Grans espées d'Allemagne or "big swords of Germany".