Crossbows and Bolts
Crossbows attack at range, can ground most flying enemies, and are the only weapon usable underwater, but cannot be upgraded.
How it works
The passage says crossbows and bolts deal less damage than steel and silver weapons, but can hurt enemies from range and ground most flying enemies. Underwater, combat is limited to the crossbow. Crossbows cannot be upgraded; bolts have different effects that compensate for this limitation. Individual bolt effects are not detailed.
When it helps
If fighting underwater or targeting a flying enemy, the passage identifies a crossbow function for each situation.
The tradeoff
The passage describes lower damage than steel and silver weapons and says crossbows cannot be upgraded.
Read the supporting references
Check the edition and source version for patch-specific details. Guide methodology.