Pyrokinesis allows the caster manipulate fire, e.g. to inflame something – whether that be a nearby candle or a huge tree ten meters away.[1]
In early July 1267, Ciri used it in the Korath desert to survive, specifically using the hen llinge spell Aenye. However, her lack of experience caused unwanted pyromantic visions which ultimately led her to renounce magic.[2]