Hey so I think the item scaling is broken? I'm Currently at 196 Strength and the Blesser is only doing 6 damage per hit
I don't think damage scaling is "broken" per say, but it is definitely unbalanced. Also, the size stat increases everything far faster than any individual stat. As the broken sword pulls from 3 stats at a scaling tier of "C", while the blesser, bat, roundel, cat ear fetish, barrel, and empty barrel all pull from a single stat. For me, the broken sword does 237, bat/blesser/roundel all do 55. Empty barrel of tier "D" does 27 while barrel of tier "A" does 137. My second playthrough I used two broken swords upgraded for XP boost, then moved onto the size sword as that does even more damage plus both have better abilities.
Good catch on weapon upgrading. For me, using the broken sword at lv0 does 226 dmg, while lv1 it does 229 dmg. Lv2 is now 233, so perhaps that is the "scaling" the tier provides or it's just an exponential scale based on the overall experience the weapon has. But I will say damage numbers do seem to have strange values.