[quote=@Crazy Scion]
<Snipped quote by ImportantNobody>

The word you are looking for is Shota. What if the weapon he is looking to break is highly volatile or super durable?
[/quote]

That's it.

There's a limit to his destructive power even if the weapon could theoretically destroy anything given the right hands (an insanely powerful being of pure destructive instinct or something). He cannot destroy the other magical weapons in his setting (he would not want too) so that means most special weapons are safe unless they are stated not to be magically protected to be super durable. I imagine if it's not at least 20 times more durable than steel than it's going down for the count but I haven't thought up the exact amount because he could likely destroy any material humans can realistically produce. One website says graphene is 100 times stronger so he might be more in that range.

If a weapon is not a solid form it only destroys the little parts he hits but his violent burst attack could destroy all of it as usual.