Eisen was unsure about what exactly Brody was trying to do just now. What kind of reasoning did he have to do something like this? Stacking the swords up in that way really just defeated the purpose of having the sword like this at all. It didn't increase the strength or weight of the Giant Greatsword all that much compared to normal, and Brody wouldn't be able to shoot the blades out like he had been doing up until now.
And it was basically like Brody noticed the old man's confusion, and was then trying to clear it up and 'explain' it to Eisen as Brody ran back toward Kiron.
For a little while, they simply regularly fought using the giant greatswords, although it seemed like this kind of gave Kiron a slight advantage. After all, Kiron had been fighting with this particular blade for quite a while now, although this was the first time that Brody was fighting with such a large blade. Although he was rapidly growing more used to it as the fight went on.