[quote=@VitaVitaAR]
[@IncredibleBee]: I don't mean just that. A fair amount of characters wield unique magic weaponry that can't be replaced. That's a line that isn't allowed to be crossed, completely destroying a character's ability to fight is a problem.

If it can destroy those then it does need restraining in some form.
[/quote]

Sundering weapons is unsurprisingly common in Berserk, considering the sheer size of Guts' sword. If a melee weapon were to survive a direct blow, it would need to either
A) Be made of some ridiculously strong, possibly otherworldly material. A Devil Arm from DMC would fit this description. So would Samurai Jack's sword, adamantium and vibranium weaponry, and similar.
B) Be just as ludicrously large as the Dragonslayer. The sword uses its extreme mass to attack, as such you'd require an equally large weapon to defend properly. A good example would be Cloud's buster sword; it's roughly the same size and estimated weight.

If you were blocking a blow with something other than a melee weapon, you're probably already screwed, because Guts is as melee as it gets.

Jury's still out on weapons whose endurance was increased via enchantment; I'm discussing that as we speak.