[Chaos]

This is, again, another example of how STR is so weak nowadays.
There's no reason to build to it, other than some weapons scaling. And that leaves you vulnerable due to not stating into more useful stats. (SKI/LUC for hitting, CEL for dodging, DEF/RES/VIT for defense.)

With that, people simply ignore the 20% STR scaling on this weapon and goes directly to SAN, which provides way more than STR will ever give. This require another STR buff thread.

I'd perfer tackling STR's lack of usage first, before we touch on Mortissimo's scaling. As nice as leveling out the power of defensive stats sounds, the way we're driving STR (tacking it as the main stat for every weapon and their mothers) is just making every other outlier more and more appealing, while ignoring STR's need for a meaningful secondary effect(s).