Sometimes in cosplay (costumed play), you will use a beautiful two-handed sword. Butit will most probably be built from light and soft material in order to limit the risk of useless accidents.
Forget all that and move to real middle-aged battle league: Use a two-handed Great Sword made of true good steel. To be sure of the advantage it gives or if you just want to figure what impact could such a sword have in knights battle, check this video below:
After such an ad (there is really a company manufacturing and selling these ultra-realistic swords to a public willing to avoid the low vulgarity of handling an automatic machine gun), I can’t avoid thinking that the knights wielding this kind of weapon must have had a nice tough build to hold and use this kind of nail clipper.