[quote=@Raineh Daze]
<Snipped quote by IncredibleBee>

Corundum is brittle; it's like hitting diamond. It [i]will[/i] break. What you need is something about as resilient to force/cutting as a seven-ish foot long iron blade. Given the forces magic weapons tend to be required to endure, it's not that unlikely.
[/quote]

Well, Guts has also cut through multiple soldiers clad in steel armor, or several magic enhanced tigers, or several magic enhanced alligators, all in one swing. My point is, he can hit hard.