Arcanum: Forces
Practice: Ruling
Primary Factor: Duration
Suggested Rote Skills: Athletics, Survival, Science


The mage can now increase or decrease the temperature of an area.


Each level of Potency allows a change of 1 level of Extreme Environment to produce heat or cold, counting a temperate room temperature as “zero”.

For example, with Potency 3, a mage could transform a Level 1 Extreme Environment based on cold into a Level 2 Environment based on heat.