Equipment drops
Upgrade a main weapon only
Concentrating scarce Deralium and Vigor on one primary weapon gives a clear, efficient upgrade target.
Gerlinde’s forge at Skyrest Bridge, after rescuing her and unlocking access to weapon upgrades.
Repeatable as a resource-allocation strategy while you have the required Vigor and Deralium. Each individual upgrade consumes the displayed cost.
Stop when the main weapon reaches the next practical upgrade cap for your current materials, or switch focus if a newly found weapon better matches your build.
Open a guide to find other locations and see what the item is used for.
Concentrating scarce Deralium and Vigor on one primary weapon gives a clear, efficient upgrade target.