A decent fighter always uses them. [A correction, slight, but there.] But a good fighter knows well enough to study his opponent before diving in headfirst.

[Is he jabbing at the fact that Mamoru tried to crack his skull open out of nowhere? Yes, he is. Sure, they fought alongside each other, but even Siegfried would choose to stay his hand rather than simply outright attack an ally as a way of testing their ability.

He listens to Mamoru's description of the weapon in his hand, and headtilts just slightly. "A razor?" Hmm. Since Mamoru wishes to fight only good fighters, it would make sense for him to bring along the best he has. Siegfried has no desire to hold up the inevitable, but he doesn't want to show off, either.

So, he reaches to his side, bringing out Balmung, placing the sheathe and cloak on his back, letting the blade itself rest against the ground.]

How often have you fought someone who uses a greatsword?