When performed, the user waves the scythe and buffs it with Frost; the cast animation takes roughly 2 seconds, after which 65 Frost build-up is added to the weapon for 30 seconds. As soon as the buff is complete, an area-of-effect inflicts 220 Frost build-up on all nearby foes. This skill requires 15 FP to perform (12 FP if the Farron Ring is equipped).
Depending on the aggression of foes being fought, the weapon buff can be used to initiate an encounter with burst Frostbite damage, or bring them close enough to be inflicted with the status effect with a single attack, making them easier to kill afterward. Care should be taken when attempting to use the skill in this way though, as it leaves the wielder completely open to attack. As well, not all enemies are vulnerable to Frostbite, so be mindful of attempting to use it on certain foes.
The Frost build-up can be a useful complement for dealing with players who rely on shields. On top of inflicting strong chip damage through the shield with each strike of the weapon, proccing Frostbite on them can deal bonus damage and inflict a penalty to their stamina regeneration and absorption, making it harder for them to block attacks and causing them to take more damage if they stop using their shield.
The area-of-effect burst Frost should generally simply be used to apply the buff, or from around a corner where other players cannot see it being performed.