Dark Souls III · Weapon skill system
Weapon skills and FP
Weapon skills are special moves that use FP; using a skill without the requisite FP removes enhanced properties and can cost more stamina.
How it works
The skill passage says skills utilize FP. They can still be performed without the requisite Focus Points, but do not yield their enhanced properties; skills that have an effect consume 50% more stamina without FP. It also says skills on weapons the player lacks stats to equip behave as if there were no FP and consume none. The passage notes that skills can be performed with full effects with half FP under its cited app and regulation entry.
Read the supporting references
Check the edition and source version for patch-specific details. Guide methodology.