weapons like “gilded bow” and the “curved dagger” are coded incorrectly.
the effect is supposed to be that when you roll the minimum on a damage die with that weapon, it is instead the maximum result (curved dagger, when you roll a 1, it deals 8 damage instead)
what is happening instead is that equipping these weapons adds the result of a maxed die as a flat bonus to all damage you deal, including with abilities. it does not have any further effect on any "1"s rolled.
images show both what the weapon is doing, and what affect it has on the “rain of blades” ability.
last image shows that the curved dagger is only supposed to have a +9 to damage (there is no other bonus damage source on this character)
character images are from, left with dagger equipped: