Snowforged

Enemies Ignited or Chilled by you have -5% to Elemental Resistances
25% increased Fire Damage
25% increased Cold Damage [1]

Snowforged is a notable passive skill that grants increased fire damage and increased cold damage. Also reduce the elemental resistance of enemies Ignite or Chill by you.

Anointment

Blight anointment to unlock the passive:

Oil #1	Oil #2	Oil #3	Outcome
Amber Oil	Teal Oil	Golden Oil	Snowforged	Enemies Ignited or Chilled by you have -5% to Elemental Resistances 25% increased Fire Damage 25% increased Cold Damage

Version	Changes
3.16.0	(Undocumented): Now grants 25% increased Fire Damage (down from 30%) and 25% increased Cold Damage (down from 30%). No longer grants 30% increased Critical Strike Chance or +10% to Fire and Cold Resistances. Instead, it now grants Enemies Ignited or Chilled by you have -5% to Elemental Resistances.
3.11.0	(Undocumented) Now grants 30% increased Fire Damage (up from 25%) and 30% increased Cold Damage (up from 25%).
2.0.0	Introduced to the game.