I've been running the Zweihander up until midway through the Capital and on a whim decided to try the Troll Knight Sword because it's one of the only other colossals that really fits my outfit and I wanted to mix things up.

Found it has the same moveset at the zweihander with a little less reach but does more damage overall because it scales with Int and Str, although not having a B in Strength for me yet at 9.

I never see anybody talking about this weapon and I gotta wonder why. I could be wrong but it seems to be staggering enemies more quickly than the zwei but aside from the zwei looking much more sexy and slim I dont see how the Troll knight sword isn't better in every way. The Ash is also super fun to time and knock enemies on their ass or launch people off of cliffs.