Resources and crafting
Upgrade equipment before Plague pushes
Spend materials at the named Sacrament smiths to improve the weapon and armor you will take into a Plague run.
Fillmore for weapons and Mira or Meri for armor in Sacrament.
Repeat whenever you gather enough materials for a worthwhile equipment improvement. Each upgrade spends its shown materials; this is not a resource farm that resets.
Stop when the weapon and armor you plan to use are adequate for your next target or when the displayed cost exceeds the materials you want to spend.
Open a guide to find other locations and see what the item is used for.
Spend materials at the named Sacrament smiths to improve the weapon and armor you will take into a Plague run.