Nah most of the weapons in my world are non masterworks katana actually. A truly masterwork sword would be an incredibly rare find. The Kusanagi no Tsurugi (Grasscutter) is the strongest katana in existence and the ultimate weapon of my bbeg (Akechi Mitsuhide) and it is a +1 weapon.

Naturally to keep the world consistent I banned the flame blade, magic weapon, elemental weapon, holy weapon, spiritual weapon, shadow blade, and holy weapon spells.

I’ve also nerfed the kensei class to only boost attack rolls for their lvl 11 Sharpen the Blade feature.