Set 4:For each Frostbite stack inflicted upon enemies, Firearm Critical Hit Damage +1.7%, Skill Critical Hit Damage +6% (up to 10 stacks, 5s duration) at a 30% chance.
When defeating an enemy inflicted with Frostbite, inflicts additional damage equivalent to 12.2% of the enemy's Max HP on enemies within a 2.5 m radius at a 30% chance.