Im just gonna guess that Hakumen would be able to cut through those building size swords. If was able to damage the black beast, he should be able to those swords with ease at 100%, unless the sword were unbreakable or something, I haven't read negima for a long time, i got lazy around chapter 30-60? I do however skim random future chapters randomly, isn't negima ending soon or so?
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Guilty Gear - (Main) - Baiken (Sub) - A.B.A - Dizzy - Anji Mito - Zappa - Sol Badguy
Blazblue - (Main) - Rachel alucard (Subs) Platinum the Trinity - Hakumen