From LSWiki

Fire Resistance is DEAD! R.I.P. It isn't here anymore. Don't bother looking for it in-game.

Class: Resistance Skills
Attribute: Vitality
Pedagogy: Body Alteration
Practitioner Term: Fire Resistor
Hidden Skill

This skill represents the conditioning of one's body to resist being damaged by elemental fire and essences that partake of its
nature.

Fire resistance can be increased by exposure to fire damage, changing more quickly according to one's somatic adaptability.  It
will decay over time, weakening more quickly according to one's somatic adaptability.

See Also: fire affinity

Trainers

Temple of Discordia: Erasmus
Association:
Guild:
Quest: